Zobrazeno 1 - 10
of 195
pro vyhledávání: '"Thew, R."'
Autor:
Tabakaev, D., Djorovic, A., La Volpe, L., Gaulier, G., Ghosh, S., Bonacina, L., Wolf, J. -P., Zbinden, H., Thew, R. T.
We experimentally study entangled two-photon absorption in Rhodamine 6G as a function of the spatial properties of a high flux of broadband entangled photon pairs. We first demonstrate a key signature dependence of the entangled two-photon absorption
Externí odkaz:
http://arxiv.org/abs/2206.00500
Autor:
Monteiro, F., Verbanis, E., Vivoli, V. Caprara, Martin, A., Gisin, N., Zbinden, H., Thew, R. T.
Device-independent quantum key distribution (DI-QKD) represents one of the most fascinating challenges in quantum communication, exploiting concepts of fundamental physics, namely Bell tests of nonlocality, to ensure the security of a communication l
Externí odkaz:
http://arxiv.org/abs/1612.01802
Demonstration of EPR steering using single-photon path entanglement and displacement-based detection
Autor:
Guerreiro, T., Monteiro, F., Martin, A., Brask, J. B., Vértesi, T., Korzh, B., Caloz, M., Bussières, F., Verma, V. B., Lita, A. E., Mirin, R. P., Nam, S. W., Marsilli, F., Shaw, M. D., Gisin, N., Brunner, N., Zbinden, H., Thew, R. T.
Publikováno v:
Phys. Rev. Lett. 117, 070404 (2016)
We demonstrate the violation of an EPR steering inequality developed for single photon path entanglement with displacement-based detection. We use a high-rate source of heralded single-photon path-entangled states, combined with high-efficiency super
Externí odkaz:
http://arxiv.org/abs/1603.03589
Publikováno v:
Phys. Rev. Lett. 116, 190501 (2016)
Imperfections in experimental measurement schemes can lead to falsely identifying, or over estimating, entanglement in a quantum system. A recent solution to this is to define schemes that are robust to measurement imperfections - measurement device
Externí odkaz:
http://arxiv.org/abs/1510.01203
Autor:
Monteiro, F., Vivoli, V. Caprara, Guerreiro, T., Martin, A., Bancal, J. -D., Zbinden, H., Thew, R. T., Sangouard, N.
Publikováno v:
Phys. Rev. Lett. 114, 170504 (2015)
How can one detect entanglement between multiple optical paths sharing a single photon? We address this question by proposing a scalable protocol, which only uses local measurements where single photon detection is combined with small displacement op
Externí odkaz:
http://arxiv.org/abs/1502.02996
Autor:
Vivoli, V. Caprara, Sekatski, P., Bancal, J. -D., Lim, C. C. W., Martin, A., Thew, R. T., Zbinden, H., Gisin, N., Sangouard, N.
Publikováno v:
New Journal of Physics 17 (2), 023023 (2015)
What is the most efficient way to generate random numbers device-independently using a photon pair source based on spontaneous parametric down conversion (SPDC)? We consider this question by comparing two implementations of a detection-loophole-free
Externí odkaz:
http://arxiv.org/abs/1409.8051
Autor:
Vivoli, V. Caprara, Sekatski, P., Bancal, J. -D., Lim, C. C. W., Christensen, B. G., Martin, A., Thew, R. T., Zbinden, H., Gisin, N., Sangouard, N.
Publikováno v:
Phys. Rev. A 91, 012107 (2015)
Motivated by very recent experiments, we consider a scenario "\`a la Bell" in which two protagonists test the Clauser-Horne-Shimony-Holt (CHSH) inequality using a photon-pair source based on spontaneous parametric down conversion and imperfect photon
Externí odkaz:
http://arxiv.org/abs/1405.1939
Autor:
Guerreiro, T., Martin, A., Sanguinetti, B., Pelc, J. S., Langrock, C., Fejer, M. M., Gisin, N., Zbinden, H., Sangouard, N., Thew, R. T.
Publikováno v:
Phys. Rev. Lett. 113, 173601 (2014)
Harnessing nonlinearities strong enough to allow two single photons to interact with one another is not only a fascinating challenge but is central to numerous advanced applications in quantum information science. Currently, all known approaches are
Externí odkaz:
http://arxiv.org/abs/1403.2084
We demonstrate a compact photon pair source based on a periodically poled lithium niobate nonlinear crystal in a cavity. The cavity parameters are chosen such that the emitted photon pair modes can be matched in the region of telecom ultra dense wave
Externí odkaz:
http://arxiv.org/abs/1312.3832
We report the realisation of a fibred polarisation entangled photon-pair source at 1560 nm based on a type-II non linear interaction and working in the picosecond regime. By taking advantage of a set of filters, we deterministically separate the phot
Externí odkaz:
http://arxiv.org/abs/1311.6654