scholarly journals Pair superfluid and supersolid of correlated hard-core bosons on a triangular lattice

2012 ◽  
Vol 86 (4) ◽  
Author(s):  
Hong-Chen Jiang ◽  
Liang Fu ◽  
Cenke Xu
Keyword(s):  
Triangular Lattice ◽  
Hard Core

scholarly journals Supersolid phase transitions for hard-core bosons on a triangular lattice

2011 ◽  
Vol 84 (17) ◽  
Author(s):  
Xue-Feng Zhang ◽  
Raoul Dillenschneider ◽  
Yue Yu ◽  
Sebastian Eggert
Keyword(s):  
Phase Transitions ◽  
Triangular Lattice ◽  
Hard Core ◽  
Supersolid Phase

scholarly journals Supersolids of Hard Core - Bosons on a Triangular Lattice

2011 ◽  
Vol 21 (4) ◽  
pp. 301
Author(s):  
Nguyen Toan Thang ◽  
Pham Thi Thanh Nga
Keyword(s):  
Long Range ◽  
Triangular Lattice ◽  
Mean Field Theory ◽  
Mean Field ◽  
Hard Core ◽  
Xxz Model ◽  
Supersolid Phase ◽  
The Mean ◽  
Boson Model ◽  
Broad Region

We study the boson model on a triangular lattice interacting only via on-site hardcore repulsion by mapping to a system of spins $(S = 1/2)$. We investigate the supersolid phase of the systems which is a state matter displaying both diagonal long- range (solid) order as well as off-diagonal long-range (superfluidity) by utilizing a semionic representation for the spin-XXZ model. We show that the supersolid order is stable in the mean-field theory for a broad region of parameters. The inclusion of spin wave corrections modifies this picture, but the supersolid phase is still quite robust on the triangular lattices.

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