Featureless Mott insulators
Journal
Physical Review B - Condensed Matter and Materials Physics
Journal Volume
81
Journal Issue
11
Date Issued
2010
Author(s)
Abstract
A family of the pair hopping models exhibiting the incompressible quantum liquid at fractional filling $1/{m}^{D}$ is constructed in $D$ dimensional lattice. Except in one dimension, the lattice is the generalized edge-shared triangular lattice, for example the triangular lattice in two dimensions and tetrahedral lattice in three dimensions. They obey the symmetry, conservation of the center-of-mass position proposed by Seidel et al. [Phys. Rev. Lett. 95, 266405 (2005)]. The finiteness of the excitation energy is calculated by the single mode approximation.
SDGs
Type
journal article