What happens when a collimated beam of light hits a narrow slit? For the slit that is only slightly narrower than the beam, it appears that the slit cuts out part of the beam. When the slit opening decreases, the
Experimental test of the strongly nonclassical character of a noisy squeezed single-photon state
Our paper on testing non-Gaussian character of Schroedinger’s cat state produced under realistic conditions has been published in Physical Review A [10.1103/PhysRevA.86.043813]. In collaboration with QUIN group of prof. Ulrik Andersen we have experimentally verified the quantum non-Gaussian character of
Časlav Brukner: Quantum clocks, mirrors and Alice and Bob in Gravity
Video and slides from Časlav Brukner’s talk at Department of Optics, Faculty of Science, Palacký University in Olomouc, May 10th 2012.
30 ms optical shutter using RC servo
In QOLO we use shutters mainly for switching between different input signals, such as probe laser and single photons, and for closing individual paths of complex interferometric setups. Typically, there are two methods how to achieve this goal based on
Theoretician’s beam splitters in The Big Bang Theory
Reblogged from http://www.facebook.com/photo.php?fbid=10151073929276264. Thanks Amine! Update: http://plus.google.com/u/0/111432130365738606615/posts/6m2ALNjLi9F
Noiseless loss suppression in quantum optical communication
We have proposed a protocol for conditional suppression of losses in direct quantum state transmission over a lossy quantum channel. The method works by noiselessly attenuating the input state prior to transmission through a lossy channel followed by noiseless amplification
YouTube channel of Institute for Quantum Computing
Very nice youtube channel with many interesting lectures: http://www.youtube.com/user/QuantumIQC
Nature Physics: Experimental estimation of the dimension of quantum systems
In collaboration with experimental and theoretical quantum physicists from Barcelona and Bristol, we have explored properties of physical systems related to the dimension of their phase space. Experimental observations are usually described using theoretical models that make assumptions about the
Summer school on quantum physics and quantum information in Olomouc
When: July 16-20, 2012 Where: Faculty of Science, Palacký University, 17. listopadu 12, Olomouc, Czech Republic [map] What: Summer school focused at the latest development of theoretical quantum information with various physical systems. The topics include: Information theory and correlations, Quantum Optics,
Sage 5.0 is available
Sage is a free mathematics software system. It is built out of nearly 100 open-source packages and features a unified Python interface. There is a nice video introduction to Sage by William Stein.