Dynamics of entanglement entropy of interacting fermions in a 1D driven harmonic trap

Autor:	McKenney, J. R., Porter, W. J., Drut, J. E.
Rok vydání:	2017
Předmět:	Condensed Matter - Quantum Gases Condensed Matter - Statistical Mechanics High Energy Physics - Lattice
Druh dokumentu:	Working Paper
DOI:	10.1051/epjconf/201817503002
Popis:	Following up on a recent analysis of two cold atoms in a time-dependent harmonic trap in one dimension, we explore the entanglement entropy of two and three fermions in the same situation when driven through a parametric resonance. We find that the presence of such a resonance in the two-particle system leaves a clear imprint on the entanglement entropy. We show how the signal is modified by attractive and repulsive contact interactions, and how it remains present for the three-particle system. Additionaly, we extend the work of recent experiments to demonstrate how restricting observation to a limited subsystem gives rise to locally thermal behavior. Comment: Proceedings of Lattice2017, Granada, Spain
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1709.09981 Zobrazit plný text záznamu View this record from Arxiv