Fermionic Quasi-free States and Maps in Information Theory - Quantum PhysicsReportar como inadecuado




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Abstract: This paper and the results therein are geared towards building a basictoolbox for calculations in quantum information theory of quasi-free fermionicsystems. Various entropy and relative entropy measures are discussed and thecalculation of these reduced to evaluating functions on the one-particlecomponent of quasi-free states.The set of quasi-free affine maps on the state space is determined and fullycharacterized in terms of operations on one-particle subspaces. For a subclassof trace preserving completely positive maps and for their duals, Choi matricesand Jamiolkowski states are discussed.



Autor: B. Dierckx, M. Fannes, M. Pogorzelska

Fuente: https://arxiv.org/







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