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- W1627486405 abstract "We reformulate time evolution of systems in mixed states in terms of the classical observables of correlators using the Weyl correspondence rule. The resulting equation of motion for the Wigner functional of the density matrix is found to be of the Liouville type. To illustrate the methods developed, we explicitly consider a scalar theory with quartic self-interaction and derive the short time behaviour with the non-interacting thermal density matrix as initial condition. In the scalar case, the complete correlator hierarchy is studied and restrictions are derived for spatially homogeneous initial conditions and systems with unbroken symmetry." @default.
- W1627486405 created "2016-06-24" @default.
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- W1627486405 date "1997-03-14" @default.
- W1627486405 modified "2023-09-27" @default.
- W1627486405 title "Wigner Functionals and their Dynamics in Quantum-Field-Theory" @default.
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- W1627486405 hasPublicationYear "1997" @default.
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