Physics – Condensed Matter – Quantum Gases
Scientific paper
2011-09-15
Physics
Condensed Matter
Quantum Gases
16 pages, 7 figures
Scientific paper
We examine the medium time quantum dynamics and population equilibration of two, three and four-well Bose-Hubbard models using stochastic integration in the truncated Wigner phase-space representation. We find that all three systems will enter at least a temporary state of equilibrium, with the details depending on both the classical initial conditions and the initial quantum statistics. We find that classical integrability is not necessarily a good guide as to whether equilibration will occur. We construct an effective single-particle reduced density matrix for each of the systems, using the expectation values of operator moments, and use this to calculate an effective entropy. Knowing the expected maximum values of this entropy for each system, we are able to quantify the different approaches to equilibrium.
Chianca C. V.
Olsen Murray K.
No associations
LandOfFree
Quantum phase-space analysis of population equilibration in multi-well ultracold atomic systems does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Quantum phase-space analysis of population equilibration in multi-well ultracold atomic systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum phase-space analysis of population equilibration in multi-well ultracold atomic systems will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-672343