Analysis of the t2-V model

A. Ghosh, S. Yarlagadda

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


We study a model (i.e., the t2-V model involving next-nearest-neighbor hopping and nearest-neighbor repulsion) in one dimension that generically depicts the dominant transport mechanism in cooperative strong electron-phonon interaction systems. Using analytic and numerical approaches, hard-core bosons are shown to typically undergo a striking discontinuous transition from a superfluid to a supersolid. Topological inequivalence of rings with even and odd number of sites is manifested through observable differences (in structure factor peaks) at the transition. Connections are also identified between the t2-V model and other topologically interesting models.

Original languageEnglish
Article number045140
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number4
StatePublished - 29 Jul 2014
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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