Comaron, P;
Dagvadorj, G;
Zamora, A;
Carusotto, I;
Proukakis, NP;
Szymanska, MH;
(2018)
Dynamical Critical Exponents in Driven-Dissipative Quantum Systems.
Physical Review Letters
, 121
(9)
, Article 095302. 10.1103/PhysRevLett.121.095302.
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Abstract
We study the phase ordering of parametrically and incoherently driven microcavity polaritons after an infinitely rapid quench across the critical region. We confirm that the system, despite its driven-dissipative nature, satisfies the dynamical scaling hypothesis for both driving schemes by exhibiting self-similar patterns for the two-point correlator at late times of the phase ordering. We show that polaritons are characterized by the dynamical critical exponent z ≈ 2 with topological defects playing a fundamental role in the dynamics, giving logarithmic corrections both to the power-law decay of the number of vortices and to the associated growth of the characteristic length scale.
| Type: | Article |
|---|---|
| Title: | Dynamical Critical Exponents in Driven-Dissipative Quantum Systems |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.121.095302 |
| Publisher version: | https://doi.org/10.1103/PhysRevLett.121.095302 |
| Language: | English |
| Additional information: | Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. |
| Keywords: | Science & Technology, Physical Sciences, Physics, Multidisciplinary, Physics, PHASE-ORDERING KINETICS, XY MODEL |
| 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/1573182 |
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