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A new dynamical equation is derived by substituting
the Schrödinger-Langevin-Kostin equation into the definition for the Wigner function,
it can be called the quantumclassical Wigner-Langevin equation. The proposed equation contains partial derivatives for
time and phase space variables of the Wigner function, its coefficients are spatial derivatives
of potentials that take into account friction, white noise and external influence. The transition
to the classical regime of motion is also discussed.
Keywords: Kostin-, Langevin-, Schrödinger-, Wigner- equation, quantum-classical transition |
full paper (pdf, 762 Kb)