Quantum dynamics of a four-well Bose-Hubbard model with two different tunneling rates

Details Quantum dynamics of a four-well Bose-Hubbard model with two different tunneling rates Quantum dynamics of a four-well Bose-Hubbard model with two different tunneling rates

2011-01-03

arxiv.org/abs/1101.0451v1

Physics

Quantum Physics

Scientific paper

We consider a theoretical model of a four-mode Bose-Hubbard model consisting of two pairs of wells coupled via two processes with two different rates. The model is naturally divided into two subsystems with strong intra-system coupling and much weaker coupling between the two subsystems and has previously been introduced as a model for Josephson heat oscillations by Strzys and Anglin [\pra {\bf 81}, 043616 (2010) ]. We examine the quantum dynamics of this model for a range of different initial conditions, in terms of both the number distribution among the wells and the quantum statistics. We find that the time evolution is different to that predicted by a mean-field model and that this system exhibits a wide range of interesting behaviours. We find that the system equilibriates to a maximum entropy state and is thus a useful model for quantum thermalisation. As our model may be realised to a good approximation in the laboratory, it becomes a candidate for experimental investigation.

Affiliated with

Also associated with

No associations

Rating

Quantum dynamics of a four-well Bose-Hubbard model with two different tunneling rates 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 dynamics of a four-well Bose-Hubbard model with two different tunneling rates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum dynamics of a four-well Bose-Hubbard model with two different tunneling rates will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-238109