dc.contributor.author |
Singh, M. |
|
dc.contributor.author |
Mishra, T. |
|
dc.contributor.author |
Pai, R.V. |
|
dc.contributor.author |
Das, B.P. |
|
dc.date.accessioned |
2015-06-04T05:10:50Z |
|
dc.date.available |
2015-06-04T05:10:50Z |
|
dc.date.issued |
2014 |
|
dc.identifier.citation |
Physical Review A. 90(1); 2014; Article No. 013625. |
en_US |
dc.identifier.uri |
http://dx.doi.org/10.1103/PhysRevA.90.013625 |
|
dc.identifier.uri |
http://irgu.unigoa.ac.in/drs/handle/unigoa/3175 |
|
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_US |
dc.publisher |
American Physical Society |
en_US |
dc.subject |
Physics |
en_US |
dc.title |
Quantum phases of attractive bosons on a Bose-Hubbard ladder with three-body constraint |
en_US |
dc.type |
Journal article |
en_US |
dc.identifier.impf |
y |
|