TY  - JOUR
AU  - Bruschi, David Edward
AU  - Chatzinotas, Symeon
AU  - Wilhelm, Frank K.
AU  - Schell, Andreas Wolfgang
TI  - Spacetime effects on wavepackets of coherent light
JO  - Physical review / D
VL  - 104
IS  - 8
SN  - 2470-0010
CY  - Melville, NY
PB  - Inst.
M1  - FZJ-2021-06179
SP  - 085015
PY  - 2021
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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000707478800008
DO  - DOI:10.1103/PhysRevD.104.085015
UR  - https://juser.fz-juelich.de/record/904609
ER  -