Power law decay of entanglement quantifiers in a single agent to a many body system coupling
Statistical Mechanics
2022-04-27 v2 Quantum Physics
Abstract
Manipulating many body quantum systems is a challenge. A useful way to achieve it would be to entangle the system to a diluted system, with a small particle number. Preparation of such entangled states can be facilitated as ground state of a many body Hamiltonian or the steady state of a many body open quantum system. Here we study two-site lattice models with a conserved boson number, biased to display a large occupancy in one of the sites. The Von Neumann entanglement entropy as well as the Logarithmic negativity show a typical power law decay in , the occupancy ratio between the two sites. These results imply that it is feasible to entangle a large many body system to a single atom, as recently reported experimentally.
Keywords
Cite
@article{arxiv.2109.09158,
title = {Power law decay of entanglement quantifiers in a single agent to a many body system coupling},
author = {Ohad Shpielberg},
journal= {arXiv preprint arXiv:2109.09158},
year = {2022}
}