𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Dynamics of quantum correlations

✍ Scribed by O Kübler; H.D Zeh

Publisher
Elsevier Science
Year
1973
Tongue
English
Weight
614 KB
Volume
76
Category
Article
ISSN
0003-4916

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✦ Synopsis

The density matrix describing the state of a subsystem of a physical system whose time dependence is assumed to follow a Schrodinger equation does not itself obey a von Neumann equation. The behavior of the eigenvalues and eigenfunctions of this density matrix is studied. An expression for the rate at which initially separating systems are de-separated is derived in perturbation theory. Indications are given that coherent photon states are more stable in the presence of charged particles than photon number eigenstates. The possible dynamical origin of super selection rules is discussed. A simple model is solved analytically.

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