Momentum Entanglement for Atom Interferometry
Quantum Physics
2021-10-04 v2 Quantum Gases
Atomic Physics
Abstract
Compared to light interferometers, the flux in cold-atom interferometers is low and the associated shot noise large. Sensitivities beyond these limitations require the preparation of entangled atoms in different momentum modes. Here, we demonstrate a source of entangled atoms that is compatible with state-of-the-art interferometers. Entanglement is transferred from the spin degree of freedom of a Bose-Einstein condensate to well-separated momentum modes, witnessed by a squeezing parameter of -3.1(8) dB. Entanglement-enhanced atom interferometers open up unprecedented sensitivities for quantum gradiometers or gravitational wave detectors.
Cite
@article{arxiv.2010.15796,
title = {Momentum Entanglement for Atom Interferometry},
author = {F. Anders and A. Idel and P. Feldmann and D. Bondarenko and S. Loriani and K. Lange and J. Peise and M. Gersemann and B. Meyer and S. Abend and N. Gaaloul and C. Schubert and D. Schlippert and L. Santos and E. Rasel and C. Klempt},
journal= {arXiv preprint arXiv:2010.15796},
year = {2021}
}
Comments
9 pages, 5 figures