On Bures fidelity of displaced squeezed thermal states

Details On Bures fidelity of displaced squeezed thermal states On Bures fidelity of displaced squeezed thermal states

1999-07-27

arxiv.org/abs/quant-ph/9907088v1

Phys.Rev.A58:4186,1998

Physics

Quantum Physics

10 pages with RevTex required

Scientific paper

10.1103/PhysRevA.58.4186

Fidelity plays a key role in quantum information and communication theory. Fidelity can be interpreted as the probability that a decoded message possesses the same information content as the message prior to coding and transmission. In this paper, we give a formula of Bures fidelity for displaced squeezed thermal states directly by the displacement and squeezing parameters and birefly discuss how the results can apply to quantum information theory.

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