Düsseldorf 2007 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 21: Quanteneffekte (Offene und Wenigteilchensysteme)

Q 21.1: Talk

Tuesday, March 20, 2007, 10:30–10:45, 5E

Monitoring approach to open quantum dynamics — •Klaus Hornberger — Arnold Sommerfeld Center for Theoretical Physics, Ludwig-Maximilians-Universität München

A general method will be discussed to obtain Markovian master equations which describe the interaction with the environment in a non-perturbative and microscopic fashion [1,2]. It is based on combining time-dependent scattering theory with the concept of continuous quantum measurements. As two nontrivial applications, I will outline how this yields the master equation for the internal dynamics of a trapped molecule in a gaseous environment, and the exact quantum linear Boltzmann equation for a Brownian point particle.

[1] K. Hornberger, Phys. Rev. Lett. 97, 060601 (2006).

[2] K. Hornberger, quant-ph/0612078