14.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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5 papers · 2 filters
Analysis of complete positivity conditions for quantum qutrit channels
A. Checinska, K. Wodkiewicz
We present an analysis of complete positivity (CP) constraints on qutrit quantum channels that have a form of affine transformations of generalized Bloch vector. For diagonal (damp…
Optimal Quantum Phase Estimation
U. Dorner, R. Demkowicz-Dobrzanski, B. J. Smith +4
By using a systematic optimization approach we determine quantum states of light with definite photon number leading to the best possible precision in optical two mode interferomet…
Statistics of multiphoton events in spontaneous parametric down-conversion
Wojciech Wasilewski, Czeslaw Radzewicz, Robert Frankowski +1
We present an experimental characterization of the statistics of multiple photon pairs produced by spontaneous parametric down-conversion realized in a nonlinear medium pumped by h…
Electromagnetic radiation by gravitating bodies
Iwo Bialynicki-Birula, Zofia Bialynicka-Birula
Gravitating bodies in motion, regardless of their constitution, always produce electromagnetic radiation in the form of photon pairs. This phenomenon is an analog of the radiation…
Intensity of parametric fluorescence pumped by ultrashort pulses
Jan Chwedeńczuk, Wojciech Wasilewski
We investigate intensity of the parametric down conversion of ultrashort, ultraviolet pulse both in a low- and high-conversion regime. In the first regime, we develop a simple anal…