We reported on experimental verification of quantum non-Gaussianity of a heralded single photon state with positive Wigner function [arXiv:1107.4305]. We unambiguously demonstrated that the generated state cannot be expressed as a mixture of Gaussian states. A sufficient information to witness
LEMO 00 Cable Assembly
How-to assembly NIM LEMO00 connector and RG174 coaxial cable References: www.lemo.ch: LEMO00 NIM/CAMAC
The laser is extremely necessary
The Perception of Science – reblogged from Something of That Ilk
Jamiołkowski-Choi isomorphism
The Choi-Jamiołkowski isomorphism is an isomorphism between linear maps from Hilbert space \({\cal H}\) to Hilbert space \({\cal K}\) and operators living in the tensor product space \({\cal H}\otimes{\cal K}\). This isomorphism provides a simple way of studying linear maps
Hadamard gate for coherent state qubits
We have experimentally demonstrated a single mode Hadamard gate for coherent state qubits by using a hybrid projector system consisting of a conditional homodyne detector and a photon counter. This implementation constitutes the first step towards the demonstration of quantum
Bc téma: Polarizačně necitlivé optické zrcadlo
Polarizace je důležitou vlastností světla využívanou pro přenos informace, optická měření a sledování fyzikálních dějů v materiálech. Při běžném optickém přenosu ale dochází k poruchám a případně úplné destrukci polarizačního stavu. Mohou za to optické elementy jako zrcadla, děliče a
Google+
Google+ demo looks really great. Different social groups and sharing possibilities? What do you think?
Erf function approximation
Approximation of the error function, $${\rm erf}(z) = \frac{2}{\sqrt{\pi}}\int_{-\infty}^{z}\!{\rm d}x\,{\rm e}^{-x^2},$$ using elementary functions could be useful, particularly for PDC and spatial walk-off simulations… Wikipedia, Sergei Winitzki’s paper
Informační brožura
Propagační brožura katedry optiky PřF UP Olomouc určená pro zájemce o studium
Hacking single photon detector module
FYI, reblogged from http://www.iet.ntnu.no/groups/optics/qcr/pictures.html SPCM-AQR from Perkin Elmer dismounted and analyzed… See Vadim Makarov’s page http://www.vad1.com/ for details…