Zobrazeno 1 - 10
of 518
pro vyhledávání: '"URSIN, R."'
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
Publikováno v:
Phys. Rev. Lett. 109, 200502 (2012)
The study of the free-space distribution of quantum correlations is necessary for any future application of quantum as classical communication aiming to connect two remote locations. Here we study the propagation of a coherent laser beam over 143 Km
Externí odkaz:
http://arxiv.org/abs/1207.6931
Autor:
Jofre, M., Gardelein, A., Anzolin, G., Amaya, W., Capmany, J., Ursin, R., Peñate, L., Lopez, D., Juan, J. L. San, Carrasco, J. A., Garcia, F., Torcal-Milla, F. J., Sanchez-Brea, L. M., Bernabeu, E., Perdigues, J. M., Jennewein, T., Torres, J. P., Mitchell, M. W., Pruneri, V.
Publikováno v:
Optics Express, Vol. 19, Issue 5, pp. 3825-3834 (2011)
A novel integrated optical source capable of emitting faint pulses with different polarization states and with different intensity levels at 100 MHz has been developed. The source relies on a single laser diode followed by four semiconductor optical
Externí odkaz:
http://arxiv.org/abs/1102.3033
Autor:
Ursin, R., Tiefenbacher, F., Schmitt-Manderbach, T., Weier, H., Scheidl, T., Lindenthal, M., Blauensteiner, B., Jennewein, T., Perdigues, J., Trojek, P., Oemer, B., Fuerst, M., Meyenburg, M., Rarity, J., Sodnik, Z., Barbieri, C., Weinfurter, H., Zeilinger, A.
Publikováno v:
Nature Physics 3, 481 - 486 (2007)
Quantum Entanglement is the essence of quantum physics and inspires fundamental questions about the principles of nature. Moreover it is also the basis for emerging technologies of quantum information processing such as quantum cryptography, quantum
Externí odkaz:
http://arxiv.org/abs/quant-ph/0607182
Autor:
Resch, K. J., Lindenthal, M., Blauensteiner, B., Boehm, H. R., Fedrizzi, A., Kurtsiefer, C., Poppe, A., Schmitt-Manderbach, T., Taraba, M., Ursin, R., Walther, P., Weier, H., Weinfurter, H., Zeilinger, A.
Publikováno v:
Opt. Express 13, 202-209 (2005)
We have distributed entangled photons directly through the atmosphere to a receiver station 7.8 km away over the city of Vienna, Austria at night. Detection of one photon from our entangled pairs constitutes a triggered single photon source from the
Externí odkaz:
http://arxiv.org/abs/quant-ph/0501008
Autor:
Villoresi, P., Tamburini, F., Aspelmeyer, M., Jennewein, T., Ursin, R., Pernechele, C., Bianco, G., Zeilinger, A., Barbieri, C.
We have tested the experimental prerequisites for a Space-to-Ground quantum communication link between satellites and an optical ground station. The feasibility of our ideas is being assessed using the facilities of the ASI Matera Laser Ranging Obser
Externí odkaz:
http://arxiv.org/abs/quant-ph/0408067
Autor:
Peev, M., Nölle, M., Maurhardt, O., Lorünser, T., Suda, M., Poppe, A., Ursin, R., Fedrizzi, A., Zeilinger, A.
In this work we review the security vulnerability of Quantum Cryptography with respect to "man-in-the-middle attacks" and the standard authentication methods applied to counteract these attacks. We further propose a modified authentication algorithm
Externí odkaz:
http://arxiv.org/abs/quant-ph/0407131
Autor:
Poppe, A., Fedrizzi, A., Loruenser, T., Maurhardt, O., Ursin, R., Boehm, H. R., Peev, M., Suda, M., Kurtsiefer, C., Weinfurter, H., Jennewein, T., Zeilinger, A.
Publikováno v:
Opt. Express 12, 3865-3871 (2004)
We present an entangled-state quantum cryptography system that operated for the first time in a real world application scenario. The full key generation protocol was performed in real time between two distributed embedded hardware devices, which were
Externí odkaz:
http://arxiv.org/abs/quant-ph/0404115
Publikováno v:
Phys. Rev. Lett. 94, 040501 (2005)
In this letter we present the first implementation of a quantum coin tossing protocol. This protocol belongs to a class of ``two-party'' cryptographic problems, where the communication partners distrust each other. As with a number of such two-party
Externí odkaz:
http://arxiv.org/abs/quant-ph/0404027
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