Rayleigh-Jeans prethermalization and wave condensation in a nonlinear disordered Floquet system
Year: 2023
Type: article
Abstract: Periodically driven quantum systems make it possible to reach stationary states with new emerging properties. However, this process is notoriously difficult in the presence of interactions because continuous energy exchanges generally boil the system to an infinite temperature featureless state. Here, we describe how to reach nontrivial states in a periodically kicked nonlinear disordered system. One ingredient is crucial: both disorder and kick strengths should be weak enough to induce sufficiently narrow and well-separated Floquet bands. In this case, inter-band heating processes are strongly suppressed and the system can reach an exponentially long-lived prethermal plateau described by the Rayleigh-Jeans distribution. Saliently, the system can even undergo a wave condensation process when its initial state has a sufficiently low total quasi-energy.
Source: Europhysics Letters (EPL)
Language: English
Topic: Quantum many-body systems
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $1,750
Awards: Mid-infrared femtosecond 2D spectroscopy in flavoenzymes by intrapulse difference frequency generation at 125 kHz, MANY body LOcalisation with the Kicked rotor, G2604158171, On the glassy nature of quantum disordered systems, G2659019386, Control of complex cold atom systems, G3010527862, G4656594441, G5127365636, G6803667113, Science et Ingénierie à l'Echelle Nano
OpenAlex ID: W4389574787