Crossover from coherent to incoherent dynamics in damped quantum systems
Reinhold Egger, Hermann Grabert, Ulrich Weiss
TL;DR
This paper explores how environmental damping causes a transition from coherent to incoherent quantum dynamics, with the transition point depending on the specific dynamical property analyzed.
Contribution
It demonstrates that the coherent-incoherent transition varies based on the dynamical quantity, providing insights into quantum decoherence mechanisms.
Findings
Transition point depends on the dynamical quantity
Damped harmonic oscillator exhibits coherence loss
Dissipative two-state system shows similar transition behavior
Abstract
The destruction of quantum coherence by environmental influences is investigated taking the damped harmonic oscillator and the dissipative two-state system as prototypical examples. It is shown that the location of the coherent-incoherent transition depends to a large degree on the dynamical quantity under consideration.
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