Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Christian Peuntinger"'
Publikováno v:
Physical Review Research, Vol 2, Iss 3, p 033523 (2020)
Optical satellite links open up new prospects for realizing quantum physical experiments over unprecedented length scales. We analyze and affirm the feasibility of detecting quantum squeezing in an optical mode with homodyne detection of only one bit
Externí odkaz:
https://doaj.org/article/19456b930525451abf77d99166414e23
Autor:
László Ruppert, Christian Peuntinger, Bettina Heim, Kevin Günthner, Vladyslav C Usenko, Dominique Elser, Gerd Leuchs, Radim Filip, Christoph Marquardt
Publikováno v:
New Journal of Physics, Vol 21, Iss 12, p 123036 (2019)
We investigate estimation of fluctuating channels and its effect on security of continuous-variable quantum key distribution. We propose a novel estimation scheme which is based on the clusterization of the estimated transmittance data. We show that
Externí odkaz:
https://doaj.org/article/7d9a8cdf9b3840a3bd1601f27f245998
Autor:
Vladyslav C Usenko, Bettina Heim, Christian Peuntinger, Christoffer Wittmann, Christoph Marquardt, Gerd Leuchs, Radim Filip
Publikováno v:
New Journal of Physics, Vol 14, Iss 9, p 093048 (2012)
Entanglement properties of Gaussian states of light as well as the security of continuous variable quantum key distribution with Gaussian states in free-space fading channels are studied. These qualities are shown to be sensitive to the statistical p
Externí odkaz:
https://doaj.org/article/725390169ffc4cf4b3122e0855e2a6bd
Autor:
Bettina Heim, László Ruppert, Radim Filip, Gerd Leuchs, Vladyslav C. Usenko, Kevin Günthner, Christian Peuntinger, Christoph Marquardt, Dominique Elser
Publikováno v:
New Journal of Physics
We investigate estimation of fluctuating channels and its effect on security of continuous-variable quantum key distribution. We propose a novel estimation scheme which is based on the clusterization of the estimated transmittance data. We show that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a408c9edb6f3ce4881b18ca0750c95a0
http://arxiv.org/abs/2011.04386
http://arxiv.org/abs/2011.04386
Publikováno v:
arXiv: 1811.09423v1
Physical Review Research
Physical Review Research
Optical satellite links open up new prospects for realizing quantum physical experiments over unprecedented length scales. We analyze and affirm the feasibility of detecting quantum squeezing in an optical mode with homodyne detection of only one bit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0c66c4b0eccb5d792757e322a1f923f
https://hdl.handle.net/21.11116/0000-0005-5705-421.11116/0000-0005-5707-2
https://hdl.handle.net/21.11116/0000-0005-5705-421.11116/0000-0005-5707-2
Publikováno v:
Laser Resonators, Microresonators, and Beam Control XX.
Publikováno v:
Physical Review Applied. 9
Autor:
Christian Peuntinger, Gerd Leuchs, Kaushik P. Seshadreesan, Christoph Marquardt, Christian Müller
Publikováno v:
2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
Homodyne detection [1] is a typical continuous-variable measurement scheme, ubiquitously used in quantum optics and quantum information. A conventional homodyne detector performs a projective measurement onto a quadrature of the electromagnetic field
Publikováno v:
Nonlinear Optics.
We show that broadband second harmonic generation within birefringent whispering gallery mode resonators can be significantly enhanced by polarization selective out-coupling.
Autor:
László Ruppert, Gerd Leuchs, Radim Filip, Kevin Günthner, Christoph Marquardt, Christian Peuntinger, Dominique Elser, Vladyslav C. Usenko, Ivan Derkach, Bettina Heim
Publikováno v:
Quantum Information Science and Technology II.
Continuous-variable quantum key distribution is a practical application of quantum information theory that is aimed at generation of secret cryptographic key between two remote trusted parties and that uses multi-photon quantum states as carriers of