Issue |
EPL
Volume 97, Number 2, January 2012
|
|
---|---|---|
Article Number | 20005 | |
Number of page(s) | 6 | |
Section | General | |
DOI | https://doi.org/10.1209/0295-5075/97/20005 | |
Published online | 17 January 2012 |
From Markovian semigroup to non-Markovian quantum evolution
Institute of Physics, Nicolaus Copernicus University - Grudzia̧dzka 5/7, 87–100 Toruń, Poland, EU
Received:
14
October
2011
Accepted:
9
December
2011
We provided a class of legitimate memory kernels leading to completely positive trace-preserving dynamical maps. Our construction is based on a simple normalization procedure. Interestingly, when applied to a classical system it gives rise to semi-Markov evolution. Therefore, it may be considered as a quantum version of semi-Markov dynamics which is much more general than Markovian dynamics.
PACS: 03.65.Yz – Decoherence; open systems; quantum statistical methods / 03.65.-w – Quantum mechanics / 42.50.Lc – Quantum fluctuations, quantum noise, and quantum jumps
© EPLA, 2012
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