Many-Body Entanglement in Short-Range Interacting Fermi Gases for Metrology
Quantum Gases
2019-08-30 v2
Abstract
We explore many-body entanglement in spinful Fermi gases with short-range interactions, for metrology purposes. We characterize the emerging quantum phases via Density-Matrix Renormalization Group simulations and quantify their entanglement content for metrological usability via the Quantum Fisher Information (QFI). Our study establishes a method, promoting the QFI to be an order parameter. Short-range interactions reveal to build up metrologically promising entanglement in the XY-ferromagnetic and cluster ordering, the cluster physics being unexplored so far.
Keywords
Cite
@article{arxiv.1904.03059,
title = {Many-Body Entanglement in Short-Range Interacting Fermi Gases for Metrology},
author = {Leonardo Lucchesi and Maria Luisa Chiofalo},
journal= {arXiv preprint arXiv:1904.03059},
year = {2019}
}
Comments
5 pages, 4 figures + 10 pages, 8 figures of supplemental