A True Equation to Couple Classical and Quantum Dynamics
نویسنده
چکیده
Starting from the Schrödinger-equation of a composite system, we derive unified dynamics of a classical harmonic system coupled to an arbitrary quantized system. The classical subsystem is described by random phase-space coordinates entangled with the quantized variables of the complementary subsystem. Our semiclassical equation is true in a sense that its predictions are identical to those of the fully quantized composite dynamics. This exact method applies to a broad class of theories, including e.g. the relativistic quantumelectrodynamics and the electron-fonon dynamics. ∗E-mail: [email protected]
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