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Quantum physics and quantum information
February 21, 2017 11:00, Moscow
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Energy entropy relation in extremal density matrices for qudit states
Julio Lopez
Moscow Institute of Physics and Technology (State University), Dolgoprudny, Moscow region
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Abstract:
The extremal density matrices are defined as the ones that make the mean value of the energy an extremal point. Using the Bloch vector factorization, a general procedure to calculate the extremal density matrices for any qudit system is presented. As examples, the general result for d=2 and some examples for d=3 and d=4 are obtained. The energy-entropy relation is discussed for these type of density matrices
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