Zobrazeno 1 - 10
of 108
pro vyhledávání: '"Sanguinetti B"'
Security proofs of quantum key distribution (QKD) systems usually assume that the users have access to source of perfect randomness. State-of-the-art QKD systems run at frequencies in the GHz range, requiring a sustained GHz rate of generation and ac
Externí odkaz:
http://arxiv.org/abs/1504.07769
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
Publikováno v:
Optics express 21 (23), 27641-27651 (2013)
Multi-photon and quantum communication experiments such as loophole-free Bell tests and device independent quantum key distribution require entangled photon sources which display high coupling efficiency. In this paper we put forward a simple quantum
Externí odkaz:
http://arxiv.org/abs/1309.2457
We present a gated silicon single photon detector based on a commercially available avalanche photodiode. Our detector achieves a photon detection efficiency of 45\pm5% at 808 nm with 2x 10^-6 dark count per ns at -30V of excess bias and -30{\deg}C.
Externí odkaz:
http://arxiv.org/abs/1208.4205
A three-step laser excitation scheme is used to make absolute frequency measurements of highly excited nF7/2 Rydberg states in 85Rb for principal quantum numbers n=33-100. This work demonstrates the first absolute frequency measurements of rubidium R
Externí odkaz:
http://arxiv.org/abs/1002.3066
Autor:
Salart, D., Landry, O., Sangouard, N., Gisin, N., Herrmann, H., Sanguinetti, B., Simon, C., Sohler, W., Thew, R. T., Thomas, A., Zbinden, H.
Publikováno v:
PRL 104, 180504 (2010)
Single-photon entanglement is a simple form of entanglement that exists between two spatial modes sharing a single photon. Despite its elementary form, it provides a resource as useful as polarization-entangled photons and it can be used for quantum
Externí odkaz:
http://arxiv.org/abs/1001.4449
State selective field ionization detection techniques in physics require a specific progression through a complicated atomic state space to optimize state selectivity and overall efficiency. For large principle quantum number n, the theoretical model
Externí odkaz:
http://arxiv.org/abs/0909.3217
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 42 165004 (2009)
Rydberg States are used in our One Atom Maser experiment because they offer a large dipole moment and couple strongly to low numbers of microwave photons in a high Q cavity. Here we report the absolute frequencies of the P$_{3/2}$ states for principa
Externí odkaz:
http://arxiv.org/abs/0905.0571
Publikováno v:
In Applied Soft Computing Journal 2011 11(2):2079-2082
