dc.contributor.author |
Singh, Manpreet |
|
dc.contributor.author |
Mishra, T |
|
dc.contributor.author |
Pai, Ramesh V |
|
dc.contributor.author |
Das, B. P |
|
dc.date.accessioned |
2014-10-22T06:52:19Z |
|
dc.date.available |
2014-10-22T06:52:19Z |
|
dc.date.issued |
2014-07 |
|
dc.identifier.citation |
Physical Review A, Vol. 90, No. 1, 013625 |
en |
dc.identifier.issn |
1094-1622 |
|
dc.identifier.uri |
http://hdl.handle.net/2248/6666 |
|
dc.description.abstract |
We obtain the complete quantum phase diagram of bosons on a two-leg ladder in the presence of attractive onsite and repulsive interchain nearest-neighbor interactions by imposing the onsite three-body constraint. We find three distinct phases; namely, the atomic superfluid (ASF), dimer superfluid (DSF), and the dimer rung insulator (DRI). In the absence of the interchain nearest-neighbor repulsion, the system exhibits a transition from the ASF to the DSF phase with increasing onsite attraction. However, the presence of the interchain nearest-neighbor repulsion stabilizes a gapped DRI phase, which is flanked by the DSF phase. We also obtain the phase diagram of the system for different values of the interchain nearest-neighbor interaction. By evaluating different order parameters, we obtain the complete phase diagram and the properties of the phase transitions using the self-consistent cluster mean-field theory. |
en |
dc.language.iso |
en |
en |
dc.publisher |
The American Physical Society |
en |
dc.relation.uri |
http://dx.doi.org/10.1103/PhysRevA.90.013625 |
en |
dc.rights |
© The American Physical Society |
en |
dc.title |
Quantum phases of attractive bosons on a Bose-Hubbard ladder with three-body constraint |
en |
dc.type |
Article |
en |