Interaction-driven phase transition in one dimensional mirror-symmetry protected topological insulator

Devendra Singh Bhakuni, Amrita Ghosh, Eytan Grosfeld

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Topological crystalline insulators are phases of matter where the crystalline symmetries solely protect the topology. In this work, we explore the effect of many-body interactions in a subclass of topological crystalline insulators, namely the mirror-symmetry protected topological crystalline insulator. Employing a prototypical mirror-symmetric quasi-one-dimensional model, we demonstrate the emergence of a mirror-symmetry protected topological phase and its robustness in the presence of short-range interactions. When longer-range interactions are introduced, we find an interaction-induced topological phase transition between the mirror-symmetry protected topological order and a trivial charge density wave. The results are obtained using density-matrix renormalization group and quantum Monte Carlo simulations in applicable limits.

Original languageEnglish
Article number048
Pages (from-to)1-18
Number of pages18
JournalSciPost Physics Core
Issue number4
StatePublished - 10 Oct 2022

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Nuclear and High Energy Physics
  • Atomic and Molecular Physics, and Optics
  • Statistical and Nonlinear Physics


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