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3,762 results on '"Alvarez L"'

1. Characterization of two iron bullets from the royal ammunition factory of Eugi (Spain)

Author

Zalakain I., Berlanga C., Alvarez L., Asa L., Labé P., Rivero P., Valencia J., and Rodríguez R.

Subjects
Archaeometallurgy, Cast iron, Ledeburite, Phosphorous, Projectiles, Steadite, Mining engineering. Metallurgy, TN1-997
Abstract

In this work, a comparative analysis of two iron bullets found in The Royal Ammunition Factory of Eugi in Navarra (Spain) was performed. Both bullets presented a spherical shape with a relatively good state of preservation, belonging to the last years of the factory production (1766-1850). Several techniques such as microhardness, X-ray fluorescence (XRF), light (LM) and scanning electron microscopy (SEM), optical mission spectroscopy (OES) and energy dispersive X-ray spectroscopy (EDX) analysis were used in order to identify the manufacturing process of the two bullets. The analyses of the microstructures carried out by LM and SEM showed that one bullet was composed of white cast iron with a pearlitic matrix, steadite and graphite; while the other was composed of grey cast iron with a pearlitic matrix, graphite and a low amount of steadite. The chemical analysis of the bullets carried out by OES indicated significant differences in the amount of silicon and phosphorous. The variation in silicon content could suggest that the foundry temperature under oxidizing environment varied during the casting. The SEM and EDX analyses showed both bullets had manganese sulphide inclusions but only one of the bullets exhibited titanium and vanadium inclusions. The microhardness analyses carried out revealed Vickers hardness differences along the diameter. This variation could be explained by the differences in cooling rate along the diameter. Based on the physical characteristics of the bullets and on the obtained results, it can be concluded that one of the bullets could have been used as a grapeshot projectile and the other one as a bullet for ribauldequins. In addition, calcined ore and slag found in this factory were also analysed. The variation found in their chemical composition corroborated that the foundry temperature employed during the manufacturing process was low, the slag being enriched in Si, Al and Mn elements.

Published
2018
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2. Unidirectional Ray Polaritons in Twisted Asymmetric Stacks

Author

Álvarez-Cuervo, J., Obst, M., Dixit, S., Carini, G., Tresguerres-Mata, A. I. F., Lanza, C., Terán-García, E., Álvarez-Pérez, G., Fernández-Álvarez, L., Diaz-Granados, K., Kowalski, R., Senerath, A. S., Mueller, N. S., Herrer, L., De Teresa, J. M., Wasserroth, S., Klopf, J. M., Beechem, T., Wolf, M., Eng, L. M., Folland, T. G., Martín-Luengo, A. Tarazaga, Martín-Sánchez, J., Kehr, S. C., Nikitin, A. Y., Caldwell, J. D., Alonso-González, P., and Paarmann, A.

Subjects
Physics - Optics, Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

The emergence of a vast repository of van der Waals (vdW) materials supporting polaritons - light coupled to matter excitations - offers a plethora of different possibilities to tailor electromagnetic waves at the subwavelength-scale. In particular, the development of twistoptics - the study of the optical properties of twisted stacks of vdW materials - allows the directional propagation of phonon polaritons (PhPs) along a single spatial direction, which has been coined as canalization. Here we demonstrate a complementary type of nanoscale unidirectional propagation that naturally emerges thanks to twistoptics: unidirectional ray polaritons (URPs). This natural phenomenon arises in two types of twisted hyperbolic stacks: homostructures of $\alpha$-MoO$_3$ and heterostructures of $\alpha$-MoO$_3$ and $\beta$-Ga$_2$O$_3$, each with very different thicknesses of its constituents. URPs are characterized by the absence of diffraction and the presence of a single phase of the propagating field. Importantly, we demonstrate that this ray behavior can be tuned by means of both relative twist angle and illumination frequency variations. Additionally, an unprecedented "pinwheel-like" propagation emerges at specific twist angles of the homostructure. We show that URPs emerge due to the twist between asymmetrically stacked biaxial slabs, while the shear effect in monoclinic $\beta$-Ga$_2$O$_3$ is of minor importance. Our findings demonstrate a natural way to excite unidirectional ray-like PhPs and offer a unique platform for controlling the propagation of PhPs at the nanoscale with many potential applications like nanoimaging, (bio)-sensing or polaritonic thermal management., Comment: 15 pages, 5 figures

Published
2024

4. Changes in entire acute bronchiolitis seasons before, during, and after the COVID-19 pandemic in Spain

Author

Rius-Peris, J.M., Maraña Pérez, A.I., Valiente Armero, A., Guardia Nieto, L., Torrecilla Cañas, J., Cueto Calvo, E.M., Marcilla Vázquez, C., Pareja León, M., Roda Martínez, N., Molini Menchón, N., Felipe Almira, E., Párraga Cifuentes, A., Sequí-Canet, J.M., Olmos García, J.M., Martínez Bayo, A., Escrivá Tomás, P., Povo Martín, S., Pantoja-Martínez, J., Caballero Mora, F.J., García Maset, L., Coret Sinisterra, A., Castillo Ochando, F., Garrido Sánchez, M.J., Edo Tena, A., Vázquez Álvarez, L., Rabasco Álvarez, L., Moya Díaz-Pintado, M.T., Cardete Pascual, I., García Candel, S., Amat Madramany, A., Moreno López, M., Pons Morales, S., Vicent Castelló, M.C., Rivera Figueiras, A.M., Herrero Galiana, A., González de Dios, J., Domingo Pla, A., Gil Piquer, R., Rius-Peris, Juan Manuel, Vicent Castelló, María del Carmen, Pareja León, Marta, Pons Morales, Sara, Amat Madramany, Ana, Pantoja-Martínez, Jorge, Gil Piquer, Raquel, Roda Martínez, Nuria, Coret Sinisterra, Alicia, Castillo Ochando, Francisca, Caballero Mora, Francisco Javier, and Moya Díaz-Pintado, María Teresa

Published
2024
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5. Determinación del flujo salivar en niños uruguayos portadores de HIV

Author

Alvarez L, Hermida L, Fabruccini A, Suárez G, Ourens M, and Gutiérrez E

Subjects
saliva, enfermedades de parótida, niños, HIV, Dentistry, RK1-715
Abstract

La mayoría de niños infectados por el virus de la inmunodeficiencia humana (VIH) presentan, dentro de sus primeros signos de enfermedad, manifestaciones orales. Uno de los factores a considerar es la disminución del flujo salival producido por infiltración glandular por el propio virus o como efecto secundario a la toma de medicación antiretroviral. Objetivo: Determinar el flujo salival en niños uruguayos portadores de VIH, que asisten al Centro Nacional de Referencia VIH SIDA del Centro Hospitalario Pereira Rossell, (CHPR) en Montevideo-Uruguay. Material y métodos: Se realizó un estudio descriptivo cuantitativo analítico de casos y controles. Se incluyeron todos los pacientes portadores de VIH que asisten al Centro Nacional de Referencia (CHPR) y los pacientes del grupo control eran usuarios del mismo Hospital, con similares condiciones socio-económicas y sanos desde el punto de vista general. Se realizó el recuento de flujo salival. Los niños del grupo de estudio se dividieron a su vez en dos grupos, según su adherencia al tratamiento antirretroviral, que era calificada en buena o mala. Se estudiaron también otros parámetros como hipertrofia parotídea y actividad de caries. Resultados: Se encontró diferencia estadísticamente significativa entre los niños del grupo de estudio y grupo control en relación a flujo salival (p= 0,0002), independiente de la adherencia al tratamiento antiretroviral.

Published
2011

6. Manejo odontológico do paciente com Deficiência de Fator XII: Relato de caso

Author

Hermida L, Alvarez L, Lewis W, Boggia B, Segovia A, and Rodríguez I

Subjects
Tratamiento odontológico, Déficit factor XII, niños, Dentistry, RK1-715
Abstract

El Servicio de Medicina Transfusional del Centro Hospitalario Pereira Rossell es el centro de referencia nacional en el área materno infantil. En el marco del convenio MSPFacultad de Odontología de la UDELAR, se atienden en este Servicio pacientes con diversas coagulopatías. El déficit de factor XII es una patología de baja prevalencia (1-1000000) y no existe evidencia científica que respalde protocolos clínicos de atención a nivel odontológico. Se presenta el caso clínico del paciente NT, portador de esta patología, de alto riesgo con alta actividad de caries, en dentición mixta, a quien se le realizó tratamiento odontológico integral con apoyo del equipo multidisciplinario que trabaja en el Servicio de Hemoterapia del CHPR.

Published
2011

7. Manejo odontológico de paciente con Deficit de Factor XII: Reporte de un caso

Author

Hermida L, Alvarez L, Lewis W, Boggia B, Segovia A, and Rodríguez I

Subjects
Tratamiento odontológico, Déficit factor XII, niños, Dentistry, RK1-715
Abstract

El Servicio de Medicina Transfusional del Centro Hospitalario Pereira Rossell es el centro de referencia nacional en el área materno infantil. En el marco del convenio MSPFacultad de Odontología de la UDELAR, se atienden en este Servicio pacientes con diversas coagulopatías. El déficit de factor XII es una patología de baja prevalencia (1-1000000) y no existe evidencia científica que respalde protocolos clínicos de atención a nivel odontológico. Se presenta el caso clínico del paciente NT, portador de esta patología, de alto riesgo con alta actividad de caries, en dentición mixta, a quien se le realizó tratamiento odontológico integral con apoyo del equipo multidisciplinario que trabaja en el Servicio de Hemoterapia del CHPR.

Published
2011

10. Loss-of-function in RBBP5 results in a syndromic neurodevelopmental disorder associated with microcephaly

Author

Acosta, Maria T., Adams, David R., Raquel, Alvarez, L., Alvey, Justin, Allworth, Aimee, Andrews, Ashley, Ashley, Euan A., Bacino, Carlos A., Bademci, Guney, Balasubramanyam, Ashok, Baldridge, Dustin, Bale, Jim, Bamshad, Michael, Barbouth, Deborah, Bayrak-Toydemir, Pinar, Beck, Anita, Beggs, Alan H., Behrens, Edward, Bejerano, Gill, Bellen, Hugo J., Bennett, Jimmy, Bernstein, Jonathan A., Berry, Gerard T., Bican, Anna, Bivona, Stephanie, Blue, Elizabeth, Bohnsack, John, Bonner, Devon, Botto, Lorenzo, Briere, Lauren C., Brown, Gabrielle, Burke, Elizabeth A., Burrage, Lindsay C., Butte, Manish J., Byers, Peter, Byrd, William E., Carey, John, Carrasquillo, Olveen, Carvhalo Neto, George D., Cassini, Thomas, Peter Chang, Ta Chen, Chanprasert, Sirisak, Chao, Hsiao-Tuan, Chinn, Ivan, Clark, Gary D., Coakley, Terra R., Cobban, Laurel A., Cogan, Joy D., Coggins, Matthew, Cole, F. Sessions, Colley, Heather A., Cope, Heidi, Corona, Rosario, Craigen, William J., Crouse, Andrew B., Cunningham, Michael, D’Souza, Precilla, Dai, Hongzheng, Dasari, Surendra, Davis, Joie, Dayal, Jyoti G., Dell'Angelica, Esteban C., Dipple, Katrina, Doherty, Daniel, Dorrani, Naghmeh, Doss, Argenia L., Douine, Emilie D., Earl, Dawn, Eckstein, David J., Emrick, Lisa T., Eng, Christine M., Falk, Marni, Fieg, Elizabeth L., Fisher, Paul G., Fogel, Brent L., Forghani, Irman, Gahl, William A., Glass, Ian, Gochuico, Bernadette, Goddard, Page C., Godfrey, Rena A., Grajewski, Alana, Hadley, Don, Halley, Meghan C., Hamid, Rizwan, Hassey, Kelly, Hayes, Nichole, High, Frances, Hing, Anne, Hisama, Fuki M., Holm, Ingrid A., Hom, Jason, Horike-Pyne, Martha, Huang, Alden, Hutchison, Sarah, Introne, Wendy, Isasi, Rosario, Izumi, Kosuke, Jarvik, Gail P., Jarvik, Jeffrey, Jayadev, Suman, Jean-Marie, Orpa, Jobanputra, Vaidehi, Kaitryn, Emerald, Ketkar, Shamika, Kiley, Dana, Kilich, Gonench, Kobren, Shilpa N., Kohane, Isaac S., Kohler, Jennefer N., Korrick, Susan, Krakow, Deborah, Krasnewich, Donna M., Kravets, Elijah, Lalani, Seema R., Lam, Byron, Lam, Christina, Lanpher, Brendan C., Lanza, Ian R., LeBlanc, Kimberly, Lee, Brendan H., Levitt, Roy, Lewis, Richard A., Liu, Pengfei, Liu, Xue Zhong, Longo, Nicola, Loo, Sandra K., Loscalzo, Joseph, Maas, Richard L., Macnamara, Ellen F., MacRae, Calum A., Maduro, Valerie V., Maghiro, Audrey Stephannie, Mahoney, Rachel, Malicdan, May Christine V., Mamounas, Laura A., Manolio, Teri A., Mao, Rong, Marom, Ronit, Marth, Gabor, Martin, Beth A., Martin, Martin G., Martínez-Agosto, Julian A., Marwaha, Shruti, McCauley, Jacob, McConkie-Rosell, Allyn, McCray, Alexa T., McGee, Elisabeth, Might, Matthew, Miller, Danny, Mirzaa, Ghayda, Moore, Ryan M., Morava, Eva, Moretti, Paolo, Mulvihill, John J., Nakano-Okuno, Mariko, Nelson, Stanley F., Nieves-Rodriguez, Shirley, Novacic, Donna, Oglesbee, Devin, Orengo, James P., Pace, Laura, Pak, Stephen, Pallais, J. Carl, Palmer, Christina G.S., Papp, Jeanette C., Parker, Neil H., Phillips, John A., III, Posey, Jennifer E., Potocki, Lorraine, Pusey Swerdzewski, Barbara N., Quinlan, Aaron, Rao, Deepak A., Raper, Anna, Raskind, Wendy, Renteria, Genecee, Reuter, Chloe M., Rives, Lynette, Robertson, Amy K., Rodan, Lance H., Rosenfeld, Jill A., Rosenthal, Elizabeth, Rossignol, Francis, Ruzhnikov, Maura, Sacco, Ralph, Sampson, Jacinda B., Saporta, Mario, Schaechter, Judy, Schedl, Timothy, Schoch, Kelly, Scott, Daryl A., Seto, Elaine, Shashi, Vandana, Shelkowitz, Emily, Sheppeard, Sam, Shin, Jimann, Silverman, Edwin K., Sinsheimer, Janet S., Sisco, Kathy, Smith, Edward C., Smith, Kevin S., Solnica-Krezel, Lilianna, Solomon, Ben, Spillmann, Rebecca C., Stergachis, Andrew, Stoler, Joan M., Sullivan, Kathleen, Sullivan, Jennifer A., Sutton, Shirley, Sweetser, David A., Sybert, Virginia, Tabor, Holly K., Tan, Queenie K.-G., Tan, Amelia L.M., Tarakad, Arjun, Tekin, Mustafa, Telischi, Fred, Thorson, Willa, Tifft, Cynthia J., Toro, Camilo, Tran, Alyssa A., Ungar, Rachel A., Urv, Tiina K., Vanderver, Adeline, Velinder, Matt, Viskochil, Dave, Vogel, Tiphanie P., Wahl, Colleen E., Walker, Melissa, Walley, Nicole M., Wambach, Jennifer, Wan, Jijun, Wang, Lee-kai, Wangler, Michael F., Ward, Patricia A., Wegner, Daniel, Hubshman, Monika Weisz, Wener, Mark, Wenger, Tara, Westerfield, Monte, Wheeler, Matthew T., Whitlock, Jordan, Wolfe, Lynne A., Worley, Kim, Xiao, Changrui, Yamamoto, Shinya, Yang, John, Zhang, Zhe, Zuchner, Stephan, Huang, Yue, Jay, Kristy L., Yen-Wen Huang, Alden, Jangam, Sharayu V., Chorin, Odelia, Rothschild, Annick, Barel, Ortal, Mariani, Milena, Iascone, Maria, Xue, Han, Huang, Jing, Mignot, Cyril, Keren, Boris, Saillour, Virginie, Mah-Som, Annelise Y., Sacharow, Stephanie, Rajabi, Farrah, Costin, Carrie, Kanca, Oguz, and Martinez-Agosto, Julian A.

Published
2024
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13. Cirugía de la enfermedad inflamatoria intestinal en España: ¿cómo lo estamos haciendo? Resultados iniciales de un registro prospectivo nacional (Registro REIC)

Author

Enriquez-Navascues, J.M., Elorza-Echaniz, G., Die Trill, J., Ocaña Jimenez, J., Moro-Valdezate, D., Leon-Espinoza, C., Primo-Romaguera, V., Sancho-Muriel, J., Pascual Migueláñez, I., Saavedra, J., Penín de Oliveira, P., Meceira Quintian, F., Carmona Agúndez, M., Gallarín Salamanca, I.M., Lopez de los Reyes, R., Vives Rodriguez, E., Navarro-Sáncheze, A., Soto-Darias, I., Monjero Ares, I., Torres García, M.I., Aldrey Cao, I., Barreiro Dominguez, E.M., Diz Jueguen, S., Bernal Sprekelsen, J.C., Ivorra García-Moncó, P., Vigorita, V., Nogueira Sixto, M., Martín Dieguez, C., López Bañeres, M., Pérez Pérez, T., Añón Iranzo, E., Vázquez-Bouzán, R., Sánchez Espinel, E., Alberdi San Roman, I., Trujillo Barbadillo, A., Martínez-García, R., Menárguez Pina, F.J., Anula Fernández, R., Mayol Martínez, J.A., Romero de Diego, A., de Andres-Asenjo, B., Ibáñez Cánovas, N., Abrisqueta Carrión, J., Estaire Gómez, M., Lorente Poyatos, R.H., Julià-Bergkvist, D., Gómez-Romeu, N., Romero-Simó, M., Mauri-Barberá, F., Arroyo, A., Alcaide-Quiros, M.J., Hernandis Villalba, J.V., Espinosa Soria, J., Parés, D., Corral, J., Jiménez-Gómez, L.M., Zorrilla Ortúzar, J., Abellán Morcillo, I., Bernabé Peñalver, A., Parra Baños, P.A., Muñoz Camarena, J.M., Abellán Garay, L., Milagros Carrasco, M., Rufas Acín, M.P., Ambrona Zafra, D., Padín Álvarez, M.H., Lora Cumplido, P., Fernández-Cepedal, L., García-González, J.M., Pérez Viejo, E., Huerga Álvarez, D., Valle Rubio, A., Jiménez Carneros, V., Arencibia-Pérez, B., Roque-Castellano, C., Ríos Blanco, R., Espina Pérez, B., Caro Tarrago, A., Saeta Campo, R., Illan Riquelme, A., Bermejo Marcos, E., Rodríguez Sánchez, A., Cagigas Fernández, C., Cristóbal Poch, L., Duque Mallen, M.V., Santero Ramírez, M.P., Aguilar Martínez, M.M., Moreno Navas, A., Gallardo Valverde, J.M., Choolani Bhojwani, E., Veleda Belanche, S., Díaz-Maag, C.R., Rodríguez-García, R., Alberca Páramo, A., Pineda Navarro, N., Ferrer Inaebnit, E., Alonso Hernández, N., Ferrer-Márquez, M., Gómez-Carmona, Z., Ramos Fernandez, M., Sanchiz Cardenas, E., Valdes-Hernandez, J., Pérez Sánchez, A., Labalde Martínez, M., García Borda, F.J., Fernández Arias, S., Fernández Hevia, M., Elosua González, T., Jimenez Alvarez, L., Sánchez-Guillén, L., Blanco-Antona, F., Soler-Silva, Á., and Millán, M.

Published
2024
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14. Impact of mediterranean diet promotion on environmental sustainability: a longitudinal analysis

Author

Álvarez-Álvarez, L., Vitelli-Storelli, F., Rubín-García, M., García, S., Bouzas, C., Ruíz-Canela, M., Corella, D., Salas-Salvadó, J., Fitó, M., Martínez, J.A., Tojal-Sierra, L., Wärnberg, J., Vioque, J., Romaguera, D., López-Miranda, J., Estruch, R., Tinahones, F.J., Santos-Lozano, J.M., Serra-Majem, L., Bueno-Cavanillas, A., García-Fernández, C., Esteve-Luque, V., Delgado-Rodríguez, M., Torrego-Ellacuría, M., Vidal, J., Prieto, L., Daimiel, L., Casas, R., García Arellano, A., Shyam, S., González, J.I., Castañer, O., García-Rios, A., Ortiz Díaz, F., Fernández, A.C., Sánchez-Villegas, A., Morey, M., Cano-Ibañez, N., Sorto-Sánchez, C., Bernal-López, M.R., Bes-Rastrollo, M., Nishi, S.K., Coltell, O., Zomeño, M.D., Peña-Orihuela, P.J., Aparicio, D.V., Zulet, M.A., Vázquez, Z., Babio, N., Pérez, K.A., Tur, J.A., and Martín-Sánchez, V.

Published
2024
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16. Benchmarking the Variational Quantum Eigensolver through Simulation of the Ground State Energy of Prebiotic Molecules on High-Performance Computers

Author

Lolur, P., Rahm, M., Skogh, M., García-Álvarez, L., and Wendin, G.

Subjects
Quantum Physics
Abstract

We use the Variational Quantum Eigensolver (VQE) as implemented in the Qiskit software package to compute the ground state energy of small molecules derived from water, H$_2$O, and hydrogen cyanide, HCN. The work aims to benchmark algorithms for calculating the electronic structure and energy surfaces of molecules of relevance to prebiotic chemistry, beginning with water and hydrogen cyanide, and to run them on the available simulated and physical quantum hardware. The numerical calculations of the algorithms for small quantum processors allow us to design more efficient protocols to be run in real hardware, as well as to analyze their performance. Future implementations on accessible quantum processing prototypes will benchmark quantum computers and provide tests of quantum advantage with heuristic quantum algorithms., Comment: 9 pages, 3 figures, 4 tables, MIPT2020, Moscow, 7-11 September 2020, AIP Proceedings (Table III corrected; ref. [16] updated)

Published
2020
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17. Reconfigurable Artificial Microswimmers with Internal Feedback

Author

Alvarez, L., Fernandez-Rodriguez, M. A., Alegria, A., Arrese-Igor, S., Zhao, K., Kröger, M., and Isa, Lucio

Subjects
Condensed Matter - Soft Condensed Matter, Condensed Matter - Materials Science
Abstract

Micron-size self-propelling particles are often proposed as synthetic models for biological microswimmers, yet they lack internally regulated adaptation, which is central to the autonomy of their biological counterparts. Conversely, adaptation and autonomy can be encoded in larger-scale soft-robotic devices, but transferring these capabilities to the colloidal scale remains elusive. Here, we create a new class of responsive microswimmers, powered by induced-charge electrophoresis, which can adapt their motility to external stimuli via an internal feedback. Using sequential capillary assembly, we fabricate deterministic colloidal clusters comprising soft thermoresponsive microparticles, which, upon spontaneous reconfiguration, induce motility changes, such as adaptation of the clusters' propulsion velocity and reversal of its direction. We rationalize the response in terms of a coupling between self-propulsion and variations of particle shape and dielectric properties. Harnessing those allows for strategies to achieve local dynamical control with simple illumination patterns, revealing exciting opportunities for the development of new tactic active materials.

Published
2020
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22. From the Bloch sphere to phase space representations with the Gottesman-Kitaev-Preskill encoding

Author

García-Álvarez, L., Ferraro, A., and Ferrini, G.

Subjects
Quantum Physics
Abstract

In this work, we study the Wigner phase-space representation of qubit states encoded in continuous variables (CV) by using the Gottesman-Kitaev-Preskill (GKP) mapping. We explore a possible connection between resources for universal quantum computation in discrete-variable (DV) systems, i.e. non-stabilizer states, and negativity of the Wigner function in CV architectures, which is a necessary requirement for quantum advantage. In particular, we show that the lowest Wigner logarithmic negativity of qubit states encoded in CV with the GKP mapping corresponds to encoded stabilizer states, while the maximum negativity is associated with the most non-stabilizer states, H-type and T-type quantum states., Comment: (v1) Accepted for publication in the Springer's "Mathematics for Industry" series. (v2) Typo in the abstract fixed; URL of the conference where the paper has been presented added: International Symposium on Mathematics, Quantum Theory, and Cryptography (MQC), held in September 2019 in Fukuoka, Japan (https://www.mqc2019.org/mqc2019/program)

Published
2019
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25. Glaucoma progression. Clinical practice guide

Author

Jaumandreu, L., Antón, A., Pazos, M., Rodriguez-Uña, I., Rodriguez Agirretxe, I., Martinez de la Casa, J.M., Ayala, M.E., Parrilla-Vallejo, M., Dyrda, A., Díez-Álvarez, L., Rebolleda, G., and Muñoz-Negrete, F.J.

Published
2023
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30. From the Bloch Sphere to Phase-Space Representations with the Gottesman–Kitaev–Preskill Encoding

Author

García-Álvarez, L., Ferraro, A., Ferrini, G., Wakayama, Masato, Editor-in-Chief, Anderssen, Robert S., Series Editor, Baryshnikov, Yuliy, Series Editor, Bauschke, Heinz H., Series Editor, Broadbridge, Philip, Series Editor, Cheng, Jin, Series Editor, Chyba, Monique, Series Editor, Cottet, Georges-Henri, Series Editor, Cuminato, José Alberto, Series Editor, Ei, Shin-ichiro, Series Editor, Fukumoto, Yasuhide, Series Editor, Hosking, Jonathan R. M., Series Editor, Jofré, Alejandro, Series Editor, Kimura, Masato, Series Editor, Landman, Kerry, Series Editor, McKibbin, Robert, Series Editor, Parmeggiani, Andrea, Series Editor, Pipher, Jill, Series Editor, Polthier, Konrad, Series Editor, Saeki, Osamu, Series Editor, Schilders, Wil, Series Editor, Shen, Zuowei, Series Editor, Toh, Kim Chuan, Series Editor, Verbitskiy, Evgeny, Series Editor, Yoshida, Nakahiro, Series Editor, Takagi, Tsuyoshi, editor, Tanaka, Keisuke, editor, Kunihiro, Noboru, editor, Kimoto, Kazufumi, editor, and Ikematsu, Yasuhiko, editor

Published
2021
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31. Fuzzy Logic in Predictive Harmonic Systems

Author

Bel, W., López De Luise, D., Costantini, F., Antoff, I., Alvarez, L., Fravega, L., Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Balas, Valentina Emilia, editor, Jain, Lakhmi C., editor, Balas, Marius Mircea, editor, and Shahbazova, Shahnaz N., editor

Published
2021
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35. The steering gaits of sperm

Author

Gong, A., Rode, S., Kaupp, U. B., Gompper, G., Elgeti, J., Friedrich, B. M., and Alvarez, L.

Published
2020

36. eXTP -- enhanced X-ray Timing and Polarimetry Mission

Author

Zhang, S. N., Feroci, M., Santangelo, A., Dong, Y. W., Feng, H., Lu, F. J., Nandra, K., Wang, Z. S., Zhang, S., Bozzo, E., Brandt, S., De Rosa, A., Gou, L. J., Hernanz, M., van der Klis, M., Li, X. D., Liu, Y., Orleanski, P., Pareschi, G., Pohl, M., Poutanen, J., Qu, J. L., Schanne, S., Stella, L., Uttley, P., Watts, A., Xu, R. X., Yu, W. F., Zand, J. J. M. in 't, Zane, S., Alvarez, L., Amati, L., Baldini, L., Bambi, C., Basso, S., Bhattacharyya, S., Bellazzini, R., Belloni, T., Bellutti, P., Bianchi, S., Brez, A., Bursa, M., Burwitz, V., Budtz-Jorgensen, C., Caiazzo, I., Campana, R., Cao, X. L., Casella, P., Chen, C. Y., Chen, L., Chen, T. X., Chen, Y., Chen, Y. P., Civitani, M., Zelati, F. Coti, Cui, W., Cui, W. W., Dai, Z. G., Del Monte, E., De Martino, D., Di Cosimo, S., Diebold, S., Dovciak, M., Donnarumma, I., Doroshenko, V., Esposito, P., Evangelista, Y., Favre, Y., Friedrich, P., Fuschino, F., Galvez, J. L., Gao, Z. L., Ge, M. Y., Gevin, O., Goetz, D., Han, D. W., Heyl, J., Horak, J., Hu, W., Huang, F., Huang, Q. S., Hudec, R., Huppenkothen, D., Israel, G. L., Ingram, A., Karas, V., Karelin, D., Jenke, P. A., Ji, L., Kennedy, T., Korpela, S., Kunneriath, D., Labanti, C., Li, G., Li, X., Li, Z. S., Liang, E. W., Limousin, O., Lin, L., Ling, Z. X., Liu, H. B., Liu, H. W., Liu, Z., Lu, B., Lund, N., Lai, D., Luo, B., Luo, T., Ma, B., Mahmoodifar, S., Marisaldi, M., Martindale, A., Meidinger, N., Men, Y. P., Michalska, M., Mignani, R., Minuti, M., Motta, S., Muleri, F., Neilsen, J., Orlandini, M., Pan, A T., Patruno, A., Perinati, E., Picciotto, A., Piemonte, C., Pinchera, M., Rachevski, A., Rapisarda, M., Rea, N., Rossi, E. M. R., Rubini, A., Sala, G., Shu, X. W., Sgro, C., Shen, Z. X., Soffitta, P., Song, L. M., Spandre, G., Stratta, G., Strohmayer, T. E., Sun, L., Svoboda, J., Tagliaferri, G., Tenzer, C., Tong, H., Taverna, R., Torok, G., Turolla, R., Vacchi, A., Wang, J., Wang, J. X., Walton, D., Wang, K., Wang, J. F., Wang, R. J., Wang, Y. F., Weng, S. S., Wilms, J., Winter, B., Wu, X., Wu, X. F., Xiong, S. L., Xu, Y. P., Xue, Y. Q., Yan, Z., Yang, S., Yang, X., Yang, Y. J., Yuan, F., Yuan, W. M., Yuan, Y. F., Zampa, G., Zampa, N., Zdziarski, A., Zhang, C., Zhang, C. L., Zhang, L., Zhang, X., Zhang, Z., Zhang, W. D., Zheng, S. J., Zhou, P., and Zhou, X. L.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena
Abstract

eXTP is a science mission designed to study the state of matter under extreme conditions of density, gravity and magnetism. Primary targets include isolated and binary neutron stars, strong magnetic field systems like magnetars, and stellar-mass and supermassive black holes. The mission carries a unique and unprecedented suite of state-of-the-art scientific instruments enabling for the first time ever the simultaneous spectral-timing-polarimetry studies of cosmic sources in the energy range from 0.5-30 keV (and beyond). Key elements of the payload are: the Spectroscopic Focusing Array (SFA) - a set of 11 X-ray optics for a total effective area of about 0.9 m^2 and 0.6 m^2 at 2 keV and 6 keV respectively, equipped with Silicon Drift Detectors offering <180 eV spectral resolution; the Large Area Detector (LAD) - a deployable set of 640 Silicon Drift Detectors, for a total effective area of about 3.4 m^2, between 6 and 10 keV, and spectral resolution <250 eV; the Polarimetry Focusing Array (PFA) - a set of 2 X-ray telescope, for a total effective area of 250 cm^2 at 2 keV, equipped with imaging gas pixel photoelectric polarimeters; the Wide Field Monitor (WFM) - a set of 3 coded mask wide field units, equipped with position-sensitive Silicon Drift Detectors, each covering a 90 degrees x 90 degrees FoV. The eXTP international consortium includes mostly major institutions of the Chinese Academy of Sciences and Universities in China, as well as major institutions in several European countries and the United States. The predecessor of eXTP, the XTP mission concept, has been selected and funded as one of the so-called background missions in the Strategic Priority Space Science Program of the Chinese Academy of Sciences since 2011. The strong European participation has significantly enhanced the scientific capabilities of eXTP. The planned launch date of the mission is earlier than 2025., Comment: 16 pages, 16 figures. Oral talk presented at SPIE Astronomical Telescopes and Instrumentation, June 26 to July 1, 2016, Edingurgh, UK

Published
2016
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37. Digital Quantum Simulation of Minimal AdS/CFT

Author

García-Álvarez, L., Egusquiza, I. L., Lamata, L., del Campo, A., Sonner, J., and Solano, E.

Subjects
Quantum Physics, Condensed Matter - Mesoscale and Nanoscale Physics, High Energy Physics - Theory
Abstract

We propose the digital quantum simulation of a minimal AdS/CFT model in controllable quantum platforms. We consider the Sachdev-Ye-Kitaev model describing interacting Majorana fermions with randomly distributed all-to-all couplings, encoding nonlocal fermionic operators onto qubits to efficiently implement their dynamics via digital techniques. Moreover, we also give a method for probing non-equilibrium dynamics and the scrambling of information. Finally, our approach serves as a protocol for reproducing a simplified low-dimensional model of quantum gravity in advanced quantum platforms as trapped ions and superconducting circuits.

Published
2016
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40. Contributors

Author

Acioglu, Cigdem, primary, Aftab, Kiran, additional, Al Omari, Safwan, additional, de Albuquerque Cacique New York, Beatriz Souza, additional, Alomari, Safwan, additional, Al-Sammarraie, Nadia, additional, Ames, Herb, additional, Amine, Ali, additional, Amo-Aparicio, Jesús, additional, Anderson, Malcolm, additional, de Araújo, Amanda Vitória Lacerda, additional, Arevalo-Martin, Angel, additional, Aziz, Namrah, additional, Barbonetti, Arcangelo, additional, Barbosa, Valéria Ribeiro Nogueira, additional, Barderas, M.G., additional, Bradley, John C., additional, Bras, Hélène, additional, Bresnahan (J.), James, additional, Brocard, Frédéric, additional, Bsat, Shadi, additional, Budd, Maggi A., additional, Care-Unger, Candice, additional, Castellini, Chiara, additional, Cerrel Bazo, Humberto A., additional, Chanbour, Hani, additional, Chio, Jonathon Chon Teng, additional, Corbacho-Alonso, N., additional, D’Andrea, Settimio, additional, D’souza, Maria M., additional, da Silva Fiorin, Fernando, additional, Daly, Robin M., additional, Desneves, Katherine J., additional, Dingu, Nejada, additional, do Espírito Santo, Caroline Cunha, additional, do Nascimento, Débora Araújo, additional, dos Santos Abilio, Mirelly, additional, Dravid, Anusha, additional, Dsouza, Jeanne Maria, additional, Edwards, W. Brent, additional, El Houshiemy, Mohamad Nabih, additional, Elkabes, Stella, additional, Enam, Syed Ather, additional, Fedorova, Jana, additional, Fehlings, Michael G., additional, Francavilla, Felice, additional, Francavilla, Sandro, additional, Ftouni, Louna, additional, Garcia-Ovejero, Daniel, additional, Golaszewski, Stefan, additional, Gosálvez, Jaime, additional, Grassner, Lukas, additional, Gumbel, Jason H., additional, Haider, Ifaz T., additional, Halaoui, Adham, additional, Han, Inbo, additional, Heary, Robert F., additional, Hong, James, additional, Horner, Philip J., additional, Huang, Ning, additional, Hubscher, Charles H., additional, Inamasu, Joji, additional, Ishiguro, Hiroyuki, additional, Jeon, Justin Y., additional, Johnston, Stephen D., additional, Jones, Kate, additional, Jure, Ignacio, additional, Kaito, Takashi, additional, Kaur, Prabhjot, additional, Kawtharani, Sarah, additional, Kellerova, Erika, additional, Kigerl, Kristina A., additional, Kim, Dong-il, additional, Kiss, Nicole, additional, Kobeissy, Firas, additional, Korupolu, Radha, additional, Kumar, Hemant, additional, Kumar, Pawan, additional, Labombarda, Florencia, additional, Ladak, Asma Akbar, additional, Lee, Jeongmin, additional, Li, Lun, additional, Liu (H.), Roger, additional, Loh, Eldon, additional, Mehta, Swati, additional, Mneimneh, Farah, additional, Molina-Holgado, Eduardo, additional, Motl, Robert W., additional, Mourino-Alvarez, L., additional, Moussalem, Charbel, additional, Mubarak, Fatima, additional, Mujtaba, Batool, additional, Nardone, Raffaele, additional, O’Carroll, Simon J., additional, Omeis, Ibrahim, additional, Orenczuk, Steve, additional, Orme, Patricia, additional, Özkan, İlknur, additional, Pavel, Jaroslav, additional, Penas, Clara, additional, Pendleton, James, additional, Popovich, Phillip G., additional, Pryor, Julie, additional, Ray, Swapan K., additional, Riberto, Marcelo, additional, Richardson, Elizabeth J., additional, Richardson, Emma V., additional, Royes, Luiz Fernando Freire, additional, Sarieddine, Rana, additional, Sastre-Oliva, T., additional, Sawaki, Lumy Adams, additional, Sayenko, Dimitry G., additional, Schnitzer, Thomas J., additional, Scoblionko, Benjamin, additional, Sheng, Zu-Hang, additional, Silveira, Stephanie L., additional, Simonian, Narina, additional, Simpson, Grahame, additional, Sinkjær, Thomas, additional, de Souza, Daniel Rubio, additional, Stampas, Argyrios, additional, Svirskis, Darren, additional, Taccola, Giuliano, additional, Tallavajhula, Sudha S., additional, Taylan, Seçil, additional, Teasell, Robert, additional, Thompson, Aiko K., additional, Toossi, Amirali, additional, Trinka, Eugen, additional, Trost, Zina, additional, Vargas-Baquero, Eduardo, additional, Ward, Leigh C., additional, Wu, Ligia Jia Lin, additional, Zamarioli, Ariane, additional, and Zavvarian, Mohammad-Masoud, additional

Published
2022
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45. Quantum chemistry and charge transport in biomolecules with superconducting circuits

Author

García-Álvarez, L., Heras, U. Las, Mezzacapo, A., Sanz, M., Solano, E., and Lamata, L.

Subjects
Quantum Physics, Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Superconductivity
Abstract

We propose an efficient protocol for digital quantum simulation of quantum chemistry problems and enhanced digital-analog quantum simulation of transport phenomena in biomolecules with superconducting circuits. Along these lines, we optimally digitize fermionic models of molecular structure with single-qubit and two-qubit gates, by means of Trotter-Suzuki decomposition and Jordan-Wigner transformation. Furthermore, we address the modelling of system-environment interactions of biomolecules involving bosonic degrees of freedom with a digital-analog approach. Finally, we consider gate-truncated quantum algorithms to allow the study of environmental effects., Comment: 10 pages, 4 figures

Published
2015
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46. NectarCAM : a camera for the medium size telescopes of the Cherenkov Telescope Array

Author

Glicenstein, J-F., Abril, O., Barrio, J-A., Blanch~Bigas, O., Bolmont, J., Bouyjou, F., Brun, P., Chabanne, E., Champion, C., Colonges, S., Corona, P., Delagnes, E., Delgado, C., Ginzov, C. Diaz, Durand, D., Ernenwein, J-P., Fegan, S., Ferreira, O., Fesquet, M., Fiasson, A., Fontaine, G., Fouque, N., Gascon, D., Giebels, B., Henault, F., Hermel, R., Hoffmann, D., Horan, D., Houles, J., Jean, P., Jocou, L., Karkar, S., Knoedlseder, J., Kossakowski, R., Lamanna, G., LeFlour, T., Lenain, J-P., Leveque, A., Louis, F., Martinez, G., Moudden, Y., Moulin, E., Nayman, P., Nunio, F., Olive, J-F., Panazol, J-L., Pavy, S., Petrucci, P-O., Pierre, E., Prast, J., Punch, M., Ramon, P., Rateau, S., Ravel, T., Rosier-Lees, S., Sanuy, A., Shayduk, M., Sizun, P-Y., Sulanke, K-H., Tavernet, J-P., Tejedor~Alvarez, L-A., Toussenel, F., Vasileiadis, G., Voisin, V., Waegebert, V., and Wischnewski, R.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena
Abstract

NectarCAM is a camera proposed for the medium-sized telescopes of the Cherenkov Telescope Array (CTA) covering the central energy range of ~100 GeV to ~30 TeV. It has a modular design and is based on the NECTAr chip, at the heart of which is a GHz sampling Switched Capacitor Array and a 12-bit Analog to Digital converter. The camera will be equipped with 265 7-photomultiplier modules, covering a field of view of 8 degrees. Each module includes the photomultiplier bases, high voltage supply, pre-amplifier, trigger, readout and Ethernet transceiver. The recorded events last between a few nanoseconds and tens of nanoseconds. The camera trigger will be flexible so as to minimize the read-out dead-time of the NECTAr chips. NectarCAM is designed to sustain a data rate of more than 4 kHz with less than 5\% dead time. The camera concept, the design and tests of the various subcomponents and results of thermal and electrical prototypes are presented. The design includes the mechanical structure, cooling of the electronics, read-out, clock distribution, slow control, data-acquisition, triggering, monitoring and services., Comment: In Proceedings of the 34th International Cosmic Ray Conference (ICRC2015), The Hague, The Netherlands. All CTA contributions at arXiv:1508.05894

Published
2015

47. Quantum Simulation of Spin Chains Coupled to Bosonic Modes with Superconducting Circuits

Author

Heras, U. Las, García-Álvarez, L., Mezzacapo, A., Solano, E., and Lamata, L.

Subjects
Quantum Physics
Abstract

We propose the implementation of a digital quantum simulation of spin chains coupled to bosonic field modes in superconducting circuits. Gates with high fidelities allows one to simulate a variety of Ising magnetic pairing interactions with transverse field, Tavis-Cummings interaction between spins and a bosonic mode, and a spin model with three-body terms. We analyze the feasibility of the implementation in realistic circuit quantum electrodynamics setups, where the interactions are either realized via capacitive couplings or mediated by microwave resonators., Comment: Chapter in R. S. Anderssen et al. (eds.), Mathematics for Industry 11 (Springer Japan, 2015)

Published
2015
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48. Digital quantum simulation of fermionic models with a superconducting circuit

Author

Barends, R., Lamata, L., Kelly, J., García-Álvarez, L., Fowler, A. G., Megrant, A., Jeffrey, E., White, T. C., Sank, D., Mutus, J. Y., Campbell, B., Chen, Yu, Chen, Z., Chiaro, B., Dunsworth, A., Hoi, I. -C., Neill, C., O'Malley, P. J. J., Quintana, C., Roushan, P., Vainsencher, A., Wenner, J., Solano, E., and Martinis, John M.

Subjects
Quantum Physics, Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Superconductivity
Abstract

Simulating quantum physics with a device which itself is quantum mechanical, a notion Richard Feynman originated, would be an unparallelled computational resource. However, the universal quantum simulation of fermionic systems is daunting due to their particle statistics, and Feynman left as an open question whether it could be done, because of the need for non-local control. Here, we implement fermionic interactions with digital techniques in a superconducting circuit. Focusing on the Hubbard model, we perform time evolution with constant interactions as well as a dynamic phase transition with up to four fermionic modes encoded in four qubits. The implemented digital approach is universal and allows for the efficient simulation of fermions in arbitrary spatial dimensions. We use in excess of 300 single-qubit and two-qubit gates, and reach global fidelities which are limited by gate errors. This demonstration highlights the feasibility of the digital approach and opens a viable route towards analog-digital quantum simulation of interacting fermions and bosons in large-scale solid state systems., Comment: Main text: 5 pages, 5 figures. Supplementary: 7 pages, 6 figures

Published
2015
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