The Narcowich-Wigner spectrum of a pure state
نویسندگان
چکیده
We completely characterize the Narcowich-Wigner spectrum of Wigner functions associated with pure states.
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ar X iv : h ep - t h / 05 04 16 6 v 1 2 0 A pr 2 00 5 Deformation Quantization and Wigner Functions ∗
We review the Weyl-Wigner formulation of quantum mechanics in phase space. We discuss the concept of Narcowich-Wigner spectrum and use it to state necessary and sufficient conditions for a phase space function to be a Wigner distribution. Based on this formalism we analize the modifications introduced by the presence of boundaries. Finally, we discuss the concept of environment-induced decohere...
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