Entanglement dynamics of photon pairs and quantum memories in the gravitational field of the earth-Reference-Cited by-同舟云学术

Entanglement dynamics of photon pairs and quantum memories in the gravitational field of the earth

Published:2024-02-29 Issue: Volume:8 Page:1273
ISSN:2521-327X
Container-title:Quantum
language:en
Short-container-title:Quantum

Author:

Barzel Roy¹,Gündoğan Mustafa²³,Krutzik Markus²³⁴,Rätzel Dennis¹²,Lämmerzahl Claus¹⁵

Affiliation:

1. ZARM, University of Bremen, Am Fallturm 2, 28359 Bremen, Germany

2. Institut für Physik, Humboldt-Universität zu Berlin, Newtonstraße 15, 12489 Berlin, Germany

3. IRIS Adlershof, Humboldt-Universität zu Berlin, Zum Großen Windkanal 2, 12489 Berlin, Germany

4. Ferdinand-Braun-Institut (FBH), Gustav-Kirchoff-Str.4, 12489 Berlin, Germany

5. Institute of Physics, Carl von Ossietzky University Oldenburg, Ammerländer Heerstr. 114-118, 26129 Oldenburg, Germany

Abstract

We investigate the effect of entanglement dynamics due to gravity – the basis of a mechanism of universal decoherence – for photonic states and quantum memories in Mach-Zehnder and Hong-Ou-Mandel interferometry setups in the gravitational field of the earth. We show that chances are good to witness the effect with near-future technology in Hong-Ou-Mandel interferometry. This would represent an experimental test of theoretical modeling combining a multi-particle effect predicted by the quantum theory of light and an effect predicted by general relativity. Our article represents the first analysis of relativistic gravitational effects on space-based quantum memories which are expected to be an important ingredient for global quantum communication networks.

Funder

Deutsche Forschungsgemeinschaft

Federal Ministry of Education and Research of Germany

BMWi

European Commission - Horizon 2020

Publisher

Verein zur Forderung des Open Access Publizierens in den Quantenwissenschaften

Link

https://quantum-journal.org/papers/q-2024-02-29-1273/pdf/

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