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Your search keyword '"Jelmer J. Renema"' showing total 6 results
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6 results on '"Jelmer J. Renema"'

3. Photonic Networked Quantum Information Technologies

Author

Benjamin Brecht, Stefanie Barz, William R. Clements, Pete Smith, Peter C. Humphreys, I. A. Walmsley, James C. Gates, C. Qiu, Dylan J. Saunders, Amir Feizpour, Michael Sprague, Brian J. Smith, K. Kazcmarek, J. H. D. Munns, W. S. Kolthammer, Helen M. Chrzanowski, Jelmer J. Renema, Eilon Poem, Joshua Nunn, B. J. Metcalf, Andreas Eckstein, and Patrick M. Ledingham

Subjects
Quantum network, Photon, Computer science, business.industry, ComputerSystemsOrganization_MISCELLANEOUS, Detector, Scalability, Electronic engineering, Quantum simulator, Quantum information, Photonics, Quantum information processing, business
Abstract

Hybrid light-matter networks offer the promise for delivering robust quantum information processing technologies, from sensor arrays to quantum simulators. New sources, detectors and memories illustrate progress towards build a resilient, scalable photonic quantum network.

Published
2016
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4. Spatially entangled 4-photons states from a periodically poled KTP crystal

Author

S. Cigdem Yorulmaz, Michiel J. A. de Dood, Alexander J. H. van der Torren, Jelmer J. Renema, and Martin P. van Exter

Subjects
Quantum optics, Photon, Materials science, business.industry, Physics::Optics, Quantum entanglement, Photon counting, Crystal, Optics, Band-pass filter, Optoelectronics, Spontaneous emission, Stimulated emission, business
Abstract

We explore four-photon spatial entanglement created by stimulated emission of photon pairs in a 2 mm long periodically poled KTP crystal. We vary the experimental conditions to explore and optimize the visiblity of stimulated pairs.

Published
2012
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5. Quantum State Reconstruction with a Single-element SSPD at Telecommunication Wavelengths

Author

Michiel J. A. de Dood, G. Frucci, Andrea Fiore, Martin P. van Exter, and Jelmer J. Renema

Subjects
Superconductivity, Physics, Quantum optics, Physics::Instrumentation and Detectors, business.industry, Single element, Avalanche photodiode, Wavelength, High fidelity, Quantum state, Condensed Matter::Superconductivity, Coherent states, Optoelectronics, business
Abstract

We demonstrate high fidelity quantum state reconstruction of coherent and thermal states of light using a single NbN superconducting single photon detector (SSPD). SSPDs outperform commonly used avalanche photodiodes for the task of quantum state reconstruction.

Published
2012
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6. Mesoscopic Non-classical Atomic States for Quantum Information and Metrology

Author

Daniel Oblak, Niels Kjærgaard, Anne Louchet-Chauvet, Eugene S. Polzik, J. Appel, and Jelmer J. Renema

Subjects
Condensed Matter::Quantum Gases, Physics, Mesoscopic physics, Quantum mechanics, Shot noise, Physics::Atomic Physics, Quantum Physics, Quantum information, Spin (physics), Noise (electronics), Projection (linear algebra), Atomic clock, Metrology
Abstract

Using shot noise limited Quantum-Non-Demolition measurements, we prepare an entangled, spin squeezed ensemble of 105 cold Cs atoms [1], which we use to improve the precision of an atomic clock by >1 dB beyond the projection noise limit [2]. We report on progress towards applying our method for realizing and characterizing non-Gaussian atomic states.

Published
2010
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