Local topological markers in odd dimensions
File(s)Odd_dimensional_topological_markers_paper.pdf (1.8 MB)
Accepted version
Author(s)
Sykes, Joseph
Barnett, Ryan
Type
Working Paper
Abstract
Local topological markers have proven to be a valuable tool for investigating
systems with topologically non-trivial bands. Due to their local nature, such
markers can treat translationally invariant systems and spatially inhomogeneous
systems on an equal footing. Among the most prevalent of these is the so-called
Chern marker, which is available for systems in two spatial dimensions. In this
paper, we describe how to generalize this marker to 1d and 3d systems, by
showing that the relevant expressions accurately describe the phenomenon of
topological pumping given by the first and second Chern numbers in 1d and 3d
respectively. In addition to providing general derivations, we verify the
markers by numerically considering model Hamiltonians. These results will open
the door for future studies including the influence of disorder on topological
pumping and topological phase transitions in odd-dimensional systems.
systems with topologically non-trivial bands. Due to their local nature, such
markers can treat translationally invariant systems and spatially inhomogeneous
systems on an equal footing. Among the most prevalent of these is the so-called
Chern marker, which is available for systems in two spatial dimensions. In this
paper, we describe how to generalize this marker to 1d and 3d systems, by
showing that the relevant expressions accurately describe the phenomenon of
topological pumping given by the first and second Chern numbers in 1d and 3d
respectively. In addition to providing general derivations, we verify the
markers by numerically considering model Hamiltonians. These results will open
the door for future studies including the influence of disorder on topological
pumping and topological phase transitions in odd-dimensional systems.
Date Issued
2021-04-19
Date Acceptance
2021-03-30
Citation
Physical Review B: Condensed Matter and Materials Physics, 2021
ISSN
1098-0121
Publisher
American Physical Society
Journal / Book Title
Physical Review B: Condensed Matter and Materials Physics
Copyright Statement
© 2020 The Author(s)
Identifier
http://arxiv.org/abs/2011.04771v2
Subjects
cond-mat.quant-gas
cond-mat.quant-gas
cond-mat.mtrl-sci
quant-ph
Notes
14 pages. Minor edits. Comments welcome
Publication Status
Published
Date Publish Online
2021-04-19