TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhys.15.2.048
TI  - Quantum chaos in interacting Bose-Bose mixtures
PY  - 2023/08/04
UR  - https://scipost.org/SciPostPhys.15.2.048
JF  - SciPost Physics
JA  - SciPost Phys.
VL  - 15
IS  - 2
SP  - 048
A1  - Duong Anh-Tai, Tran
AU  - Mikkelsen, Mathias
AU  - Busch, Thomas
AU  - Fogarty, Thomás
AB  - The appearance of chaotic quantum dynamics significantly depends on the symmetry properties of a system, and in cold atomic systems many of these can be experimentally controlled. In this work, we systematically study the emergence of quantum chaos in a minimal system describing one-dimensional harmonically trapped Bose-Bose mixtures by tuning the particle-particle interactions. Using an improved exact diagonalization scheme, we examine the transition from integrability to chaos when the inter-component interaction changes from weak to strong. Our study is based on the analysis of the level spacing distribution and the distribution of the matrix elements of observables in terms of the eigenstate thermalization hypothesis and their dynamics. We show that one can obtain strong signatures of chaos by increasing the inter-component interaction strength and breaking the symmetry of intra-component interactions.
ER  -

@Article{10.21468/SciPostPhys.15.2.048,
	title={{Quantum chaos in interacting Bose-Bose mixtures}},
	author={Tran Duong Anh-Tai and Mathias Mikkelsen and Thomas Busch and Thomás Fogarty},
	journal={SciPost Phys.},
	volume={15},
	pages={048},
	year={2023},
	publisher={SciPost},
	doi={10.21468/SciPostPhys.15.2.048},
	url={https://scipost.org/10.21468/SciPostPhys.15.2.048},
}