Bauer, M;
Parish, MM;
(2012)
Dipolar Gases in Coupled One-Dimensional Lattices.
Phys. Rev. Lett.
, 108
(25)
, Article 255302. 10.1103/PhysRevLett.108.255302.
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Abstract
We consider dipolar bosons in two tubes of one-dimensional lattices, where the dipoles are aligned to be maximally repulsive and the particle filling fraction is the same in each tube. In the classical limit of zero inter-site hopping, the particles arrange themselves into an ordered crystal for any rational filling fraction, forming a complete devil's staircase like in the single tube case. Turning on hopping within each tube then gives rise to a competition between the crystalline Mott phases and a liquid of defects or solitons. However, for the two-tube case, we find that solitons from different tubes can bind into pairs for certain topologies of the filling fraction. This provides an intriguing example of pairing that is purely driven by correlations close to a Mott insulator.
| Type: | Article |
|---|---|
| Title: | Dipolar Gases in Coupled One-Dimensional Lattices |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.108.255302 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.108.255302 |
| Language: | English |
| Additional information: | © 2012 American Physical Society |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1341694 |
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