6533b82afe1ef96bd128c1e8
RESEARCH PRODUCT
Lindblad- and non-Lindblad-type dynamics of a quantum Brownian particle
Jyrki PiiloJyrki PiiloJyrki PiiloFrancesco PetruccioneSabrina ManiscalcoSabrina ManiscalcoFrancesco IntravaiaAntonino Messinasubject
PhysicsQuantum PhysicsQuantum decoherenceQuantum dynamicsTime evolutionFOS: Physical sciencesQuantum Physics16. Peace & justice01 natural sciencesAtomic and Molecular Physics and Optics010305 fluids & plasmasOpen quantum systemClassical mechanicsdynamics environments system-environment correlations0103 physical sciencesWigner distribution functionStatistical physicsQuantum Physics (quant-ph)010306 general physicsWave functionQuantumBrownian motiondescription
The dynamics of a typical open quantum system, namely a quantum Brownian particle in a harmonic potential, is studied focussing 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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2004-05-24 | Physical Review A |