Many-body nonlocality as a resource for quantum-enhanced metrology
Quantum Physics
2021-06-02 v1 Quantum Gases
Abstract
We demonstrate that a many-body nonlocality is a resource for ultra-precise metrology. This result is achieved by linking the sensitivity of a quantum sensor with a combination of many-body correlation functions that witness the nonlocality. We illustrate our findings with some prominent examples---a collection of spins forming an Ising chain and a gas of ultra-cold atoms in any two-mode configuration.
Keywords
Cite
@article{arxiv.2011.06612,
title = {Many-body nonlocality as a resource for quantum-enhanced metrology},
author = {Artur Niezgoda and Jan Chwedenczuk},
journal= {arXiv preprint arXiv:2011.06612},
year = {2021}
}
Comments
7 pages, 3 figures