Supersolid in a one-dimensional model of hard-core bosons

Mishra, Tapan and Pai, Ramesh V and Mukerjee, Subroto (2014) Supersolid in a one-dimensional model of hard-core bosons. In: PHYSICAL REVIEW A, 89 (1).

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Abstract

We study a system of hard-core boson on a one-dimensional lattice with frustrated next-nearest-neighbor hopping and nearest-neighbor interaction. At half filling, for equal magnitude of nearest- and next-nearest-neighbor hopping, the ground state of this system exhibits a first-order phase transition from a bond-ordered solid to a charge-density-wave solid as a function of the nearest- neighbor interaction. Moving away from half filling we investigate the system at incommensurate densities, where we find a supersolid phase which has concurrent off-diagonal long-range order and density-wave order which is unusual in a system of hard-core bosons in one dimension. Using the finite-size density-matrix renormalization group method, we obtain the complete phase diagram for this model.

Item Type:	Journal Article
Publication:	PHYSICAL REVIEW A
Publisher:	AMER PHYSICAL SOC
Additional Information:	Copyright for this article belongs to the AMER PHYSICAL SOC, USA
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	23 May 2014 05:55
Last Modified:	23 May 2014 05:55
URI:	http://eprints.iisc.ac.in/id/eprint/48920

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