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4 papers · 2 filters
Decoherence and linear entropy increase in the quantum baker's map
Andrei N. Soklakov, Ruediger Schack
We show that the coarse-grained quantum baker's map exhibits a linear entropy increase at an asymptotic rate given by the Kolmogorov-Sinai entropy of the classical chaotic baker's…
Quantum probabilities as Bayesian probabilities
Carlton M. Caves, Christopher A. Fuchs, Ruediger Schack
In the Bayesian approach to probability theory, probability quantifies a degree of belief for a single trial, without any a priori connection to limiting frequencies. In this paper…
Unknown Quantum States: The Quantum de Finetti Representation
Carlton M. Caves, Christopher A. Fuchs, Ruediger Schack
We present an elementary proof of the quantum de Finetti representation theorem, a quantum analogue of de Finetti's classical theorem on exchangeable probability assignments. This…
Conditional evolution in single-atom cavity QED
Andrei N. Soklakov, Ruediger Schack
We consider a typical setup of cavity QED consisting of a two-level atom interacting strongly with a single resonant electromagnetic field mode inside a cavity. The cavity is reson…