Localized phase structures growing out of quantum fluctuations in a quench of tunnel-coupled atomic condensates

Details Localized phase structures growing out of quantum fluctuations in a quench of tunnel-coupled atomic condensates Localized phase structures growing out of quantum fluctuations in a quench of tunnel-coupled atomic condensates

2011-12-27

arxiv.org/abs/1112.5982v1

Physics

Condensed Matter

Quantum Gases

7 pages, 5 figures

Scientific paper

We investigate the relative phase between two weakly interacting 1D condensates of bosonic atoms after suddenly switching on the tunnel-coupling. The following phase dynamics is governed by the quantum sine-Gordon equation. In the semiclassical limit of weak interactions, we observe the parametric amplification of quantum fluctuations leading to the formation of breathers with a finite lifetime. The typical lifetime and density of the these 'quasibreathers' are derived employing exact solutions of the classical sine-Gordon equation. Both depend on the initial relative phase between the condensates, which is considered as a tunable parameter.

Affiliated with

Also associated with

No associations

Rating

Localized phase structures growing out of quantum fluctuations in a quench of tunnel-coupled atomic condensates 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 Localized phase structures growing out of quantum fluctuations in a quench of tunnel-coupled atomic condensates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Localized phase structures growing out of quantum fluctuations in a quench of tunnel-coupled atomic condensates will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-37413