Article (Scientific journals)
Spacetime effects on wavepackets of coherent light
Bruschi, David Edward; Chatzinotas, Symeon; Wilhelm, Frank K. et al.
2021In Physical Review. D
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Abstract :
[en] We investigate the interplay between gravity and the quantum coherence present in the state of a pulse of light propagating in curved spacetime. We first introduce an operational way to distinguish between the overall shift in the pulse wavepacket and its genuine deformation after propagation. We then apply our technique to quantum states of photons that are coherent in the frequency degree of freedom, as well as to states of completely incoherent light. We focus on Gaussian profiles and frequency combs and find that the quantum coherence initially present can enhance the deformation induced by propagation in a curved background. These results further supports the claim that genuine quantum features, such as quantum coherence, can be used to probe the gravitational properties of physical systems. We specialize our techniques to Earth-to-satellite communication setups, where the effects of gravity are weak but can be tested with current satellite technologies.
Disciplines :
Computer science
Author, co-author :
Bruschi, David Edward
Chatzinotas, Symeon  ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
Wilhelm, Frank K.
Schell, Andreas W.
External co-authors :
yes
Language :
English
Title :
Spacetime effects on wavepackets of coherent light
Publication date :
2021
Journal title :
Physical Review. D
ISSN :
2470-0029
Publisher :
American Physical Society, College Park, United States - Maryland
Peer reviewed :
Peer Reviewed verified by ORBi
Focus Area :
Security, Reliability and Trust
Available on ORBilu :
since 12 January 2022

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