Tonielli, F., Budich, J. C., Altland, A. and Diehl, S. (2020). Topological Field Theory Far from Equilibrium. Phys. Rev. Lett., 124 (24). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1079-7114
Full text not available from this repository.Abstract
The observable properties of topological quantum matter are often described by topological field theories. Here, we demonstrate that this principle extends beyond thermal equilibrium. To this end, we construct a model of two-dimensional driven open dynamics with a Chern insulator steady state. Within a Keldysh field theory approach, we show that under mild assumptions-particle number conservation and purity of the stationary state-an abelian Chern-Simons theory describes its response to external perturbations. As a corollary, we predict chiral edge modes stabilized by a dissipative bulk.
| Item Type: | Journal Article | ||||||||||||||||||||
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| URN: | urn:nbn:de:hbz:38-329545 | ||||||||||||||||||||
| DOI: | 10.1103/PhysRevLett.124.240404 | ||||||||||||||||||||
| Journal or Publication Title: | Phys. Rev. Lett. | ||||||||||||||||||||
| Volume: | 124 | ||||||||||||||||||||
| Number: | 24 | ||||||||||||||||||||
| Date: | 2020 | ||||||||||||||||||||
| Publisher: | AMER PHYSICAL SOC | ||||||||||||||||||||
| Place of Publication: | COLLEGE PK | ||||||||||||||||||||
| ISSN: | 1079-7114 | ||||||||||||||||||||
| Language: | English | ||||||||||||||||||||
| Faculty: | Unspecified | ||||||||||||||||||||
| Divisions: | Unspecified | ||||||||||||||||||||
| Subjects: | no entry | ||||||||||||||||||||
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| URI: | http://kups.ub.uni-koeln.de/id/eprint/32954 |
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