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747 results on '"Angeles J"'

1. A Novel Adaptive Prosthetic Finger Design with Scalability

Author

Liu, S., Angeles, J., Chen, C., Ceccarelli, Marco, Series Editor, Agrawal, Sunil K., Advisory Editor, Corves, Burkhard, Advisory Editor, Glazunov, Victor, Advisory Editor, Hernández, Alfonso, Advisory Editor, Huang, Tian, Advisory Editor, Jauregui Correa, Juan Carlos, Advisory Editor, Takeda, Yukio, Advisory Editor, and Okada, Masafumi, editor

Published
2023
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3. Parametrically Activated Entangling Gates Using Transmon Qubits

Author

Caldwell, S., Didier, N., Ryan, C. A., Sete, E. A., Hudson, A., Karalekas, P., Manenti, R., Reagor, M., da Silva, M. P., Sinclair, R., Acala, E., Alidoust, N., Angeles, J., Bestwick, A., Block, M., Bloom, B., Bradley, A., Bui, C., Capelluto, L., Chilcott, R., Cordova, J., Crossman, G., Curtis, M., Deshpande, S., Bouayadi, T. El, Girshovich, D., Hong, S., Kuang, K., Lenihan, M., Manning, T., Marchenkov, A., Marshall, J., Maydra, R., Mohan, Y., O'Brien, W., Osborn, C., Otterbach, J., Papageorge, A., Paquette, J. -P., Pelstring, M., Polloreno, A., Prawiroatmodjo, G., Rawat, V., Renzas, R., Rubin, N., Russell, D., Rust, M., Scarabelli, D., Scheer, M., Selvanayagam, M., Smith, R., Staley, A., Suska, M., Tezak, N., Thompson, D. C., To, T. -W., Vahidpour, M., Vodrahalli, N., Whyland, T., Yadav, K., Zeng, W., and Rigetti, C.

Subjects
Quantum Physics
Abstract

We describe and implement a family of entangling gates activated by radio-frequency flux modulation applied to a tunable transmon that is statically coupled to a neighboring transmon. The effect of this modulation is the resonant exchange of photons directly between levels of the two-transmon system, obviating the need for mediating qubits or resonator modes and allowing for the full utilization of all qubits in a scalable architecture. The resonance condition is selective in both the frequency and amplitude of modulation and thus alleviates frequency crowding. We demonstrate the use of three such resonances to produce entangling gates that enable universal quantum computation: one iSWAP gate and two distinct controlled Z gates. We report interleaved randomized benchmarking results indicating gate error rates of 6% for the iSWAP (duration 135ns) and 9% for the controlled Z gates (durations 175 ns and 270 ns), limited largely by qubit coherence., Comment: As submitted. 7 pages, 6 figures

Published
2017
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4. Demonstration of Universal Parametric Entangling Gates on a Multi-Qubit Lattice

Author

Reagor, M., Osborn, C. B., Tezak, N., Staley, A., Prawiroatmodjo, G., Scheer, M., Alidoust, N., Sete, E. A., Didier, N., da Silva, M. P., Acala, E., Angeles, J., Bestwick, A., Block, M., Bloom, B., Bradley, A., Bui, C., Caldwell, S., Capelluto, L., Chilcott, R., Cordova, J., Crossman, G., Curtis, M., Deshpande, S., Bouayadi, T. El, Girshovich, D., Hong, S., Hudson, A., Karalekas, P., Kuang, K., Lenihan, M., Manenti, R., Manning, T., Marshall, J., Mohan, Y., O'Brien, W., Otterbach, J., Papageorge, A., Paquette, J. -P., Pelstring, M., Polloreno, A., Rawat, V., Ryan, C. A., Renzas, R., Rubin, N., Russell, D., Rust, M., Scarabelli, D., Selvanayagam, M., Sinclair, R., Smith, R., Suska, M., To, T. -W., Vahidpour, M., Vodrahalli, N., Whyland, T., Yadav, K., Zeng, W., and Rigetti, C. T.

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

We show that parametric coupling techniques can be used to generate selective entangling interactions for multi-qubit processors. By inducing coherent population exchange between adjacent qubits under frequency modulation, we implement a universal gateset for a linear array of four superconducting qubits. An average process fidelity of $\mathcal{F}=93\%$ is estimated for three two-qubit gates via quantum process tomography. We establish the suitability of these techniques for computation by preparing a four-qubit maximally entangled state and comparing the estimated state fidelity against the expected performance of the individual entangling gates. In addition, we prepare an eight-qubit register in all possible bitstring permutations and monitor the fidelity of a two-qubit gate across one pair of these qubits. Across all such permutations, an average fidelity of $\mathcal{F}=91.6\pm2.6\%$ is observed. These results thus offer a path to a scalable architecture with high selectivity and low crosstalk.

Published
2017
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22. Dynamics Modelling

Author

Angeles, J., Kecskeméthy, A., Kaliszky, Sandor, editor, Sayir, Mahir, editor, Schneider, Wilhelm, editor, Bianchi, Giovanni, editor, Tasso, Carlo, editor, Angeles, J., editor, and Kecskeméthy, A., editor

Published
1995
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23. Fundamentals of Rigid-Body Mechanics

Author

Angeles, J., Kecskeméthy, A., Kaliszky, Sandor, editor, Sayir, Mahir, editor, Schneider, Wilhelm, editor, Bianchi, Giovanni, editor, Tasso, Carlo, editor, Angeles, J., editor, and Kecskeméthy, A., editor

Published
1995
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24. Introduction

Author

Angeles, J., Kecskeméthy, A., Kaliszky, Sandor, editor, Sayir, Mahir, editor, Schneider, Wilhelm, editor, Bianchi, Giovanni, editor, Tasso, Carlo, editor, Angeles, J., editor, and Kecskeméthy, A., editor

Published
1995
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31. Indexing Mechanisms

Author

Gonzalez-Palacios, M. A., Angeles, J., Gladwell, G. M. L., editor, Gonzalez-Palacios, M. A., and Angeles, J.

Published
1993
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32. Synthesis Tools

Author

Gonzalez-Palacios, M. A., Angeles, J., Gladwell, G. M. L., editor, Gonzalez-Palacios, M. A., and Angeles, J.

Published
1993
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34. Preamble

Author

Gonzalez-Palacios, M. A., Angeles, J., Gladwell, G. M. L., editor, Gonzalez-Palacios, M. A., and Angeles, J.

Published
1993
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48. Introduction

Author

Angeles, J., López-Cajún, C. S., Gladwell, G. M. L., editor, Angeles, J., and López-Cajún, C. S.

Published
1991
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