Zobrazeno 1 - 10
of 168
pro vyhledávání: '"Verma, V. B."'
Autor:
Verma, V. B., Korzh, B., Walter, A. B., Lita, A. E., Briggs, R. M., Colangelo, M., Zhai, Y., Wollman, E. E., Beyer, A. D., Allmaras, J. P., Bumble, B., Vora, H., Zhu, D., Schmidt, E., Berggren, K. K., Mirin, R. P., Nam, S. W., Shaw, M. D.
We developed superconducting nanowire single-photon detectors (SNSPDs) based on tungsten silicide (WSi) that show saturated internal detection efficiency up to a wavelength of 10 um. These detectors are promising for applications in the mid-infrared
Externí odkaz:
http://arxiv.org/abs/2012.09979
Autor:
Todaro, S. L., Verma, V. B., McCormick, K. C., Allcock, D. T. C., Mirin, R. P., Wineland, D. J., Nam, S. W., Wilson, A. C., Leibfried, D., Slichter, D. H.
Publikováno v:
Phys. Rev. Lett. 126, 010501 (2021)
We report high-fidelity state readout of a trapped ion qubit using a trap-integrated photon detector. We determine the hyperfine qubit state of a single $^9$Be$^+$ ion held in a surface-electrode rf ion trap by counting state-dependent ion fluorescen
Externí odkaz:
http://arxiv.org/abs/2008.00065
Autor:
Guccione, G., Darras, T., Jeannic, H. Le, Verma, V. B., Nam, S. W., Cavaillès, A., Laurat, J.
Publikováno v:
Science Advances 6, eaba4508 (2020)
Recent advances in quantum technologies are rapidly stimulating the building of quantum networks. With the parallel development of multiple physical platforms and different types of encodings, a challenge for present and future networks is to uphold
Externí odkaz:
http://arxiv.org/abs/2003.11041
Autor:
Frasca, S., Korzh, B., Colangelo, M., Zhu, D., Lita, A. E., Allmaras, J. P., Wollman, E. E., Verma, V. B., Dane, A. E., Ramirez, E., Beyer, A. D., Nam, S. W., Kozorezov, A. G., Shaw, M. D., Berggren, K. K.
Publikováno v:
Phys. Rev. B 100, 054520 (2019)
We estimate the depairing current of superconducting nanowire single photon detectors (SNSPDs) by studying the dependence of the nanowires kinetic inductance on their bias current. The kinetic inductance is determined by measuring the resonance frequ
Externí odkaz:
http://arxiv.org/abs/1904.08596
Autor:
McCaughan, A. N., Verma, V. B., Buckley, S., Allmaras, J. P., Kozorezov, A. G., Tait, A. N., Nam, S. W., Shainline, J. M.
A number of current approaches to quantum and neuromorphic computing use superconductors as the basis of their platform or as a measurement component, and will need to operate at cryogenic temperatures. Semiconductor systems are typically proposed as
Externí odkaz:
http://arxiv.org/abs/1903.10461
Autor:
Cavaillès, A., Jeannic, H. Le, Raskop, J., Guccione, G., Markham, D., Diamanti, E., Shaw, M. D., Verma, V. B., Nam, S. W., Laurat, J.
Publikováno v:
Phys. Rev. Lett. 121, 170403 (2018)
Einstein-Podolsky-Rosen steering is known to be a key resource for one-sided device-independent quantum information protocols. Here we demonstrate steering using hybrid entanglement between continuous- and discrete-variable optical qubits. To this en
Externí odkaz:
http://arxiv.org/abs/1811.00036
Autor:
The BIG Bell Test Collaboration, Abellán, C., Acín, A., Alarcón, A., Alibart, O., Andersen, C. K., Andreoli, F., Beckert, A., Beduini, F. A., Bendersky, A., Bentivegna, M., Bierhorst, P., Burchardt, D., Cabello, A., Cariñe, J., Carrasco, S., Carvacho, G., Cavalcanti, D., Chaves, R., Cortés-Vega, J., Cuevas, A., Delgado, A., de Riedmatten, H., Eichler, C., Farrera, P., Fuenzalida, J., García-Matos, M., Garthoff, R., Gasparinetti, S., Gerrits, T., Jouneghani, F. Ghafari, Glancy, S., Gómez, E. S., González, P., Guan, J. -Y., Handsteiner, J., Heinsoo, J., Heinze, G., Hirschmann, A., Jiménez, O., Kaiser, F., Knill, E., Knoll, L. T., Krinner, S., Kurpiers, P., Larotonda, M. A., Larsson, J. -Å., Lenhard, A., Li, H., Li, M. -H., Lima, G., Liu, B., Liu, Y., Grande, I. H. López, Lunghi, T., Ma, X., Magaña-Loaiza, O. S., Magnard, P., Magnoni, A., Martí-Prieto, M., Martínez, D., Mataloni, P., Mattar, A., Mazzera, M., Mirin, R. P., Mitchell, M. W., Nam, S., Oppliger, M., Pan, J. -W., Patel, R. B., Pryde, G. J., Rauch, D., Redeker, K., Rieländer, D., Ringbauer, M., Roberson, T., Rosenfeld, W., Salathé, Y., Santodonato, L., Sauder, G., Scheidl, T., Schmiegelow, C. T., Sciarrino, F., Seri, A., Shalm, L. K., Shi, S. -C., Slussarenko, S., Stevens, M. J., Tanzilli, S., Toledo, F., Tura, J., Ursin, R., Vergyris, P., Verma, V. B., Walter, T., Wallraff, A., Wang, Z., Weinfurter, H., Weston, M. M., White, A. G., Wu, C., Xavier, G. B., You, L., Yuan, X., Zeilinger, A., Zhang, Q., Zhang, W., Zhong, J.
Publikováno v:
Nature, volume 557, pages 212-216 (2018)
A Bell test is a randomized trial that compares experimental observations against the philosophical worldview of local realism. A Bell test requires spatially distributed entanglement, fast and high-efficiency detection and unpredictable measurement
Externí odkaz:
http://arxiv.org/abs/1805.04431
Autor:
Zarkeshian, P., Deshmukh, C., Sinclair, N., Goyal, S. K., Aguilar, G. H., Lefebvre, P., Puigibert, M. Grimau, Verma, V. B., Marsili, F., Shaw, M. D., Nam, S. W., Heshami, K., Oblak, D., Tittel, W., Simon, C.
Publikováno v:
Nature Communications 8, 906 (2017)
We create a multi-partite entangled state by storing a single photon in a crystal that contains many large atomic ensembles with distinct resonance frequencies. The photon is re-emitted at a well-defined time due to an interference effect analogous t
Externí odkaz:
http://arxiv.org/abs/1703.04709
Autor:
Puigibert, M. Grimau, Aguilar, G. H., Zhou, Q., Marsili, F., Shaw, M. D., Verma, V. B., Nam, S. W., Oblak, D., Tittel, W.
Publikováno v:
Phys. Rev. Lett. 119, 083601 (2017)
We propose and experimentally demonstrate a novel approach to a heralded single photon source based on spectral multiplexing (SMUX) and feed-forward-based spectral manipulation of photons created by means of spontaneous parametric down-conversion in
Externí odkaz:
http://arxiv.org/abs/1703.02068
Autor:
Kozorezov, A. G., Lambert, C., Marsili, F., Stevens, M. J., Verma, V. B., Allmaras, J. P., Shaw, M. D., Mirin, R. P., Nam, Sae Woo
Publikováno v:
Phys. Rev. B 96, 054507 (2017)
Because of their universal nature, Fano fluctuations are expected to influence the response of superconducting nanowire single-photon detectors (SNSPDs). We predict that photon counting rate ($PCR$) as a function of bias current ($I_B$) in SNSPDs is
Externí odkaz:
http://arxiv.org/abs/1702.02813