How many particles make up a chaotic many-body quantum system?

Date

2020-12-28

Journal Title

Journal ISSN

Volume Title

Publisher

arXiv preprint arXiv:2012.14436

Abstract

We numerically investigate the minimum number of interacting particles, which is required for the onset of strong chaos in quantum systems on a one-dimensional lattice with short-range and long-range interactions. We consider multiple system sizes which are at least three times larger than the number of particles and find that robust signatures of quantum chaos emerge for as few as 4particles in the case of short-range interactions and as few as 3 particles for long-range interactions,and without any apparent dependence on the size of the system.

Description

Research paper / Open Access

Keywords

Quantum statistical mechanics, chaos

Citation

Santos, Lea F., Zisling, Guy and Bar Lev, Yevgeny. How many particles make up a chaotic many-body quantum system? arXiv preprint arXiv:2012.14436