Journal article
Quantum hall network models as floquet topological insulators
- Abstract:
- Network models for equilibrium integer quantum Hall (IQH) transitions are described by unitary scattering matrices that can also be viewed as representing nonequilibrium Floquet systems. The resulting Floquet bands have zero Chern number, and are instead characterized by a chiral Floquet winding number. This begs the question, How can a model without Chern number describe IQH systems? We resolve this puzzle by showing that nonzero Chern number is recovered from the network model via the energy dependence of network model scattering parameters. This relationship shows that, despite their topologically distinct origins, IQH and chiral Floquet topology-changing transitions share identical universal scaling properties.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
Actions
Access Document
- Files:
-
-
(Preview, Accepted manuscript, pdf, 4.6MB, Terms of use)
-
- Publisher copy:
- 10.1103/PhysRevLett.125.086601
Authors
- Publisher:
- American Physical Society
- Journal:
- Physical Review Letters More from this journal
- Volume:
- 125
- Issue:
- 8
- Article number:
- 086601
- Publication date:
- 2020-08-20
- Acceptance date:
- 2020-07-31
- DOI:
- EISSN:
-
1079-7114
- ISSN:
-
0031-9007
- Language:
-
English
- Keywords:
- Pubs id:
-
1087316
- Local pid:
-
pubs:1087316
- Deposit date:
-
2020-09-11
- ARK identifier:
Terms of use
- Copyright holder:
- American Physical Society
- Copyright date:
- 2020
- Rights statement:
- © 2020 American Physical Society.
- Notes:
- This is the accepted manuscript version of the article. The final version is available online from the American Physical Society at: https://doi.org/10.1103/PhysRevLett.125.086601
If you are the owner of this record, you can report an update to it here: Report update to this record