Journal article
Exact multistability and dissipative time crystals in interacting fermionic lattices
- Abstract:
- The existence of multistability in quantum systems beyond the mean-field approximation remains an intensely debated open question. Quantum fluctuations are finite-size corrections to the mean-field as the full exact solution is unobtainable and they usually destroy the multistability present on the mean-field level. Here, by identifying and using exact modulated dynamical symmetries in a driven-dissipative fermionic chain we exactly prove multistability in the presence of quantum fluctuations. Further, unlike common cases in our model, rather than destroying multistability, the quantum fluctuations themselves exhibit multistability, which is absent on the mean-field level for our systems. Moreover, the studied model acquires additional thermodynamic dynamical symmetries that imply persistent periodic oscillations, constituting the first case of a boundary time crystal,to the best of our knowledge, a genuine extended many-body quantum system with the previous cases being only in emergent single- or few-body models. The model can be made into a dissipative time crystal in the limit of large dissipation (i.e. the persistent oscillations are stabilized by the dissipation) making it both a boundary and dissipative time crystal.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
Actions
Access Document
- Files:
-
-
(Preview, Version of record, pdf, 875.8KB, Terms of use)
-
- Publisher copy:
- 10.1038/s42005-022-01090-z
Authors
+ Engineering and Physical Sciences Research Council
More from this funder
- Grant:
- EP/M013243/1
- EP/P009565/1
- Publisher:
- Springer Nature
- Journal:
- Communications Physics More from this journal
- Volume:
- 5
- Issue:
- 1
- Article number:
- 318
- Publication date:
- 2022-12-07
- Acceptance date:
- 2022-11-17
- DOI:
- EISSN:
-
2399-3650
- Language:
-
English
- Keywords:
- Subjects:
- Pubs id:
-
1492345
- Local pid:
-
pubs:1492345
- Deposit date:
-
2023-07-16
Terms of use
- Copyright holder:
- Alaeian and Buča
- Copyright date:
- 2022
- Rights statement:
- © The Author(s) 2022. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
- Licence:
- CC Attribution (CC BY)
If you are the owner of this record, you can report an update to it here: Report update to this record