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Updated: Apr 28, 2026

Characterization of Thermal Transport in One-dimensional Solid Materials
Published on: January 26, 2014
Characterization of a topological Mott insulator in one dimension
Tsuneya Yoshida1, Robert Peters1, Satoshi Fujimoto1
1Department of Physics, Kyoto University, Kyoto 606-8502, Japan.
Abstract:
We investigate properties of a topological Mott insulator in one dimension by examining the bulk topological invariant and the entanglement spectrum of a correlated electron model. We clarify how gapless edge states in a noninteracting topological band insulator evolve into spinon edge states in a topological Mott insulator. Furthermore, we propose a topological Mott transition, which is a new type of topological phase transition which has never been observed in free fermion systems. This unconventional transition occurs in spin liquid phases in the Mott insulator and is accompanied by zeros of the single-electron Green's function and a gap closing in the spin excitation spectrum.
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