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49 papers · 2 filters
Quantum Entanglement: Separability, Measure, Fidelity of Teleportation and Distillation
Ming Li, Shao-Ming Fei, Xianqing Li-Jost
Quantum entanglement plays crucial roles in quantum information processing. Quantum entangled states have become the key ingredient in the rapidly expanding field of quantum inform…
Absolute calibration of photodetectors: photocurrent multiplication versus photocurrent subtraction
I. N. Agafonov, M. V. Chekhova, T. Sh. Iskhakov +3
We report testing of the new absolute method of photodetectors calibration based on the difference-signal measurement for two-mode squeezed vacuum by comparison with the traditiona…
Microwave guiding of electrons on a chip
Johannes Hoffrogge, Roman Fröhlich, Mark A. Kasevich +1
Electrons travelling in free space have allowed to explore fundamental physics like the wave nature of matter, the Aharonov-Bohm and the Hanbury Brown-Twiss effect. Complementarily…
Reply to "Avoiding the Detector Blinding Attack on Quantum Cryptography"
Lars Lydersen, Carlos Wiechers, Christoffer Wittmann +3
This is a reply to the comment by Yuan et al. [arXiv:1009.6130v1] on our publication [arXiv:1008.4593].
Entangled Qubits in a non-Gaussian Quantum State
T. Kiesel, W. Vogel, B. Hage +1
We experimentally generate and tomographically characterize a mixed, genuinely non-Gaussian bipartite continuous-variable entangled state. By testing entanglement in 22-dim…
Two Color Entanglement
Aiko Samblowski, Christina E. Laukötter, Nicolai Grosse +2
We report on the generation of entangled states of light between the wavelengths 810 and 1550 nm in the continuous variable regime. The fields were produced by type I optical param…