Joint entropy and decoherence without dissipation in a driven harmonic oscillator
Abstract
The joint entropy of a non-dissipative driven harmonic oscillator for both the single and the double Gaussian states is determined. It is shown that, a non-random driving force does not influence the evolution of the system's joint entropy. For a random driving force however, the joint entropy increases almost monotonically with time, while exhibiting oscillatory behavior. The increase is a further proof of the decoherence mechanism in the system, for which we determine the duration and other characteristics.
- Publication:
-
European Physical Journal Plus
- Pub Date:
- September 2016
- DOI:
- 10.1140/epjp/i2016-16326-9
- Bibcode:
- 2016EPJP..131..326F