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

• URL: http://arxiv.org/abs/2209.02099v3
• Date: Wed, 28 Feb 2024 09:25:18 GMT
• Title: Entanglement dynamics of photon pairs and quantum memories in the gravitational field of the earth
• Authors: Roy Barzel, Mustafa G\"undo\u{g}an, Markus Krutzik, Dennis R\"atzel, Claus L\"ammerzahl
• Abstract summary: We show that chances are good to witness the effect with near-future technology in Hong-Ou-Mandel interferometry. Our article represents the first analysis of relativistic gravitational effects on space-based quantum memories.
• Score: 0.0
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• 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.

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