Supersolids of Hard Core - Bosons on a Triangular Lattice

Nguyen Toan Thang; Pham Thi Thanh Nga

doi:10.15625/0868-3166/21/4/361

Supersolids of Hard Core - Bosons on a Triangular Lattice

Nguyen Toan Thang, Pham Thi Thanh Nga

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Authors

Nguyen Toan Thang
Pham Thi Thanh Nga

DOI:

https://doi.org/10.15625/0868-3166/21/4/361

Abstract

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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Published

30-12-2011

How to Cite

[1]

N. T. Thang and P. T. T. Nga, Supersolids of Hard Core - Bosons on a Triangular Lattice, Comm. Phys. 21 (2011) 301. DOI: https://doi.org/10.15625/0868-3166/21/4/361.

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Issue

Vol. 21 No. 4 (2011)

Section

Papers

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