TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhys.17.1.007
TI  - Prethermalization in coupled one-dimensional quantum gases
PY  - 2024/07/10
UR  - https://scipost.org/SciPostPhys.17.1.007
JF  - SciPost Physics
JA  - SciPost Phys.
VL  - 17
IS  - 1
SP  - 007
A1  - Łebek, Maciej
AU  - Panfil, Miłosz
AU  - Konik, Robert M.
AB  - We consider the problem of the development of steady states in one-dimensional Bose gas tubes that are weakly coupled to one another through a density-density interaction. We analyze this development through a Boltzmann collision integral approach. We argue that when the leading order of the collision integral, where single particle-hole excitations are created in individual gases, is dominant, the state of the gas evolves first to a non-thermal fixed point, i.e. a prethermalization plateau. This order is dominant when a pair of tubes are inequivalent with, say, different temperatures or different effective interaction parameters, $\gamma$. When both tubes are in the strongly interacting regime we additionally characterize this non-thermal prethermalization plateau by constructing the quasi-conserved quantities that control the existence of this plateau as well as the associated generalized Gibbs ensemble.
ER  -

@Article{10.21468/SciPostPhys.17.1.007,
	title={{Prethermalization in coupled one-dimensional quantum gases}},
	author={Maciej Łebek and Miłosz Panfil and Robert M. Konik},
	journal={SciPost Phys.},
	volume={17},
	pages={007},
	year={2024},
	publisher={SciPost},
	doi={10.21468/SciPostPhys.17.1.007},
	url={https://scipost.org/10.21468/SciPostPhys.17.1.007},
}