| Issue |
EPL
Volume 77, Number 5, March 2007
|
|
|---|---|---|
| Article Number | 50007 | |
| Number of page(s) | 5 | |
| Section | General | |
| DOI | https://doi.org/10.1209/0295-5075/77/50007 | |
| Published online | 22 February 2007 | |
Monitoring approach to open quantum dynamics using scattering theory
Arnold Sommerfeld Center for Theoretical Physics, Ludwig-Maximilians-Universitat München - Theresienstraße 37, 80333 Munich, Germany
Received:
11
December
2006
Accepted:
16
January
2007
It is shown how S-matrix theory and the concept of continuous quantum measurements can be combined to yield Markovian master equations which describe the environmental interaction non-perturbatively. The method is then applied to obtain the master equation for the effects of a gas on the internal dynamics of an immobile complex quantum system, such as a trapped molecule, in terms of the exact multi-channel scattering amplitudes.
PACS: 03.65.Yz – Decoherence; open systems; quantum statistical methods / 03.65.Nk – Scattering theory / 34.10.+x – General theories and models of atomic and molecular collisions and interactions (including statistical theories, transition state, stochastic and trajectory models, etc.)
© Europhysics Letters Association, 2007
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