A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Lindblad- and non-Lindblad-type dynamics of a quantum Brownian particle
Tekijät: Maniscalco S, Piilo J, Intravaia F, Petruccione F, Messina A
Kustantaja: AMERICAN PHYSICAL SOC
Julkaisuvuosi: 2004
Journal: Physical Review A
Tietokannassa oleva lehden nimi: PHYSICAL REVIEW A
Lehden akronyymi: PHYS REV A
Artikkelin numero: ARTN 032113
Vuosikerta: 70
Numero: 3
Sivujen määrä: 13
ISSN: 1050-2947
DOI: https://doi.org/10.1103/PhysRevA.70.032113
Tiivistelmä
The dynamics of a typical open quantum system, namely a quantum Brownian particle in a harmonic potential, is studied focusing on its non-Markovian regime. Both an analytic approach and a stochastic wave-function approach are used to describe the exact time evolution of the system. The border between two very different dynamical regimes, the Lindblad and non-Lindblad regimes, is identified and the relevant physical variables governing the passage from one regime to the other are singled out. The non-Markovian short-time dynamics is studied in detail by looking at the mean energy, the squeezing, the Mandel parameter, and the Wigner function of the system.
The dynamics of a typical open quantum system, namely a quantum Brownian particle in a harmonic potential, is studied focusing on its non-Markovian regime. Both an analytic approach and a stochastic wave-function approach are used to describe the exact time evolution of the system. The border between two very different dynamical regimes, the Lindblad and non-Lindblad regimes, is identified and the relevant physical variables governing the passage from one regime to the other are singled out. The non-Markovian short-time dynamics is studied in detail by looking at the mean energy, the squeezing, the Mandel parameter, and the Wigner function of the system.
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