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
YU Faculty Profile
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