Publication: Characterization of Topological States on a Lattice with Chern Number
Open/View Files
Date
2008
Published Version
Journal Title
Journal ISSN
Volume Title
Publisher
Institute of Physics
The Harvard community has made this article openly available. Please share how this access benefits you.
Citation
Hafezi, M., A. S. Sørensen, M. D. Lukin, and E. Demler. 2008. Characterization of topological states on a lattice with Chern number. Europhysics Letters 81(1): 10005.
Research Data
Abstract
We study Chern numbers to characterize the ground state of strongly interacting systems on a lattice. This method allows us to perform a numerical characterization of bosonic fractional quantum Hall (FQH) states on a lattice where the conventional overlap calculation with the known continuum case such as the Laughlin state, breaks down due to the lattice structure or dipole-dipole interaction. The non-vanishing Chern number indicates the existence of a topological order in the degenerate ground-state manifold.
Description
Other Available Sources
Keywords
mesoscale physics, nanoscale physics, quantum physics
Terms of Use
This article is made available under the terms and conditions applicable to Open Access Policy Articles (OAP), as set forth at Terms of Service