Journal
PHYSICAL REVIEW A
Volume 100, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.100.033618
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Funding
- Quantera ERA-NET cofund project NAQUAS through the Consiglio Nazionale delle Ricerche
- Engineering and Physical Science Research Council [EP/R043434/1, EP/L504828/1]
- Provincia Autonoma di Trento
- EPSRC [EP/R043434/1] Funding Source: UKRI
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We study the dynamics of a two-dimensional Bose gas after an instantaneous quench of an initially ultracold thermal atomic gas across the Berezinskii-Kosterlitz-Thouless phase transition, confirming via stochastic simulations that the system undergoes phase-ordering kinetics and fulfills the dynamical scaling hypothesis at late-time dynamics. Specifically, we find in that regime the vortex number decaying in time as < N-v > proportional to t(-1), consistent with a dynamical critical exponent z approximate to 2 for both temperature and interaction quenches. Focusing on finite-size boxlike geometries, we demonstrate that such an observation is within current experimental reach.
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