Video and slides from Časlav Brukner’s talk at Department of Optics, Faculty of Science, Palacký University in Olomouc, May 10th 2012.
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
How many photons does it take to measure a transmittance? Sometimes less than one.
In collaboration with theoretical quantum physicists from Pavia, Italy, we have studied minimum-energy quantum reading. Here in Quantum Optics Lab Olomouc we have demonstrated some efficient reading protocols using fiber-optics interferometric setup which encodes two quantum bits in which-way degree