Details
| Original language | English |
|---|---|
| Article number | 085015 |
| Journal | Physical Review D |
| Volume | 104 |
| Issue number | 8 |
| Publication status | Published - 11 Oct 2021 |
Abstract
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 wave packet 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 support 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.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physics and Astronomy (miscellaneous)
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In: Physical Review D, Vol. 104, No. 8, 085015, 11.10.2021.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Spacetime effects on wavepackets of coherent light
AU - Bruschi, David Edward
AU - Chatzinotas, Symeon
AU - Wilhelm, Frank K.
AU - Schell, Andreas Wolfgang
N1 - Funding Information: We thank Steven J. van Enk, Christopher A. Fuchs, Jan Kohlrus, Valente Pranubon, Leila Khouri, Rosario Vunc Vedinciano, Matthias Blau and Jorma Louko for useful comments and discussions. A. W. S. acknowledges funding by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy—EXC-2123 QuantumFrontiers—390837967. The satellite of Fig. is licensed for free use by Pixabay, while the Earth is licensed for non commercial use under the CC BY-NC 4.0 agreement by pngimg.com.
PY - 2021/10/11
Y1 - 2021/10/11
N2 - 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 wave packet 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 support 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.
AB - 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 wave packet 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 support 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.
UR - http://www.scopus.com/inward/record.url?scp=85117421526&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.104.085015
DO - 10.1103/PhysRevD.104.085015
M3 - Article
AN - SCOPUS:85117421526
VL - 104
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 8
M1 - 085015
ER -