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001009456 1001_ $$0P:(DE-Juel1)199095$$aAlanis Rodriguez, Luis Adrian$$b0$$ufzj
001009456 1112_ $$aAvenues of Quantum Field Theory in Curved Spacetime (AQFTCS 2022)$$cGenova$$d2022-09-14 - 2022-09-16$$wItaly
001009456 245__ $$aIntroduction to gravitational redshift of quantum photons propagating in curved spacetime
001009456 260__ $$aBristol$$bIOP Publ.$$c2023
001009456 300__ $$a012016
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001009456 520__ $$aGravitational redshift is discussed in the context of quantum photons propagating in curved spacetime. A brief introduction to modelling realistic photons is first presented and the effect of gravity on the spectrum computed for photons largely confined along the direction of propagation. It is then shown that redshift-induced transformations on photon operators with sharp momenta are not unitary, while a unitary transformation can be constructed for realistic photons with finite bandwidth. The unitary transformation obtained is then characterized as a multimode mixing operation, which is a generalized rotation of the Hilbert-space basis. Finally, applications of these results are discussed with focus on performance of quantum communication protocols, exploitation of the effects for quantum metrology and sensing, as well as potential for tests of fundamental science.
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001009456 7001_ $$0P:(DE-HGF)0$$aSchell, A. W.$$b1
001009456 7001_ $$0P:(DE-Juel1)185963$$aBruschi, David Edward$$b2$$eCorresponding author$$ufzj
001009456 773__ $$0PERI:(DE-600)2166409-2$$a10.1088/1742-6596/2531/1/012016$$gVol. 2531, no. 1, p. 012016 -$$n1$$p012016 -$$tJournal of physics / Conference Series$$v2531$$x1742-6588$$y2023
001009456 8564_ $$uhttps://juser.fz-juelich.de/record/1009456/files/Introduction%20to%20gravitational%20redshift%20of%20quantum%20photons%20propagating%20in%20curved%20spacetime.pdf$$yOpenAccess
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