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On the quantum description of Einstein's Brownian motion
Francesco Petruccione, Bassano Vacchini
A fully quantum treatment of Einstein's Brownian motion is given, showing in particular the role played by the two original requirements of translational invariance and connection…
Scaling of non-Markovian Monte Carlo wave-function methods
J. Piilo, S. Maniscalco, A. Messina +1
We demonstrate a scaling method for non-Markovian Monte Carlo wave-function simulations used to study open quantum systems weakly coupled to their environments. We derive a scaling…
Initial correlations effects on decoherence at zero temperature
B. Bellomo, G. Compagno, F. Petruccione
We consider a free charged particle interacting with an electromagnetic bath at zero temperature. The dipole approximation is used to treat the bath wavelengths larger than the wid…
Lindblad and non--Lindblad type dynamics of a quantum Brownian particle
S. Maniscalco, J. Piilo, F. Intravaia +2
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 approa…
Non-Markovian dynamics in a spin star system: Exact solution and approximation techniques
Heinz-Peter Breuer, Daniel Burgarth, Francesco Petruccione
The reduced dynamics of a central spin coupled to a bath of N spin-1/2 particles arranged in a spin star configuration is investigated. The exact time evolution of the reduced dens…