Lledo, C;
Szymanska, MH;
(2020)
A dissipative time crystal with or without Z(2) symmetry breaking.
New Journal Of Physics
, 22
, Article 075002. 10.1088/1367-2630/ab9ae3.
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Abstract
We study an emergent semiclassical time crystal composed of two interacting driven-dissipative bosonic modes. The system has a discrete Z2 spatial symmetry which, depending on the strength of the drive, can be broken in the time-crystalline phase or it cannot. An exact semiclassical mean-field analysis, numerical simulations in the quantum regime, and the spectral analysis of the Liouvillian are combined to show the emergence of the time crystal and to prove the robustness of the oscillation period against quantum fluctuations.
| Type: | Article |
|---|---|
| Title: | A dissipative time crystal with or without Z(2) symmetry breaking |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1088/1367-2630/ab9ae3 |
| Publisher version: | https://doi.org/10.1088/1367-2630/ab9ae3 |
| Language: | English |
| Additional information: | Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. https://creativecommons.org/licenses/by/4.0/ |
| Keywords: | dissipative time crystal, symmetry breaking, effective decoupling, nonlocal dissipation, light–matter interactions |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10101604 |
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