Details
| Original language | English |
|---|---|
| Article number | 105016 |
| Journal | Physical Review D |
| Volume | 105 |
| Issue number | 10 |
| Publication status | Published - 20 May 2022 |
Abstract
We study the influence of the relativistic redshift on Hong-Ou-Mandel (HOM) interference and present a genuine quantum test of general relativity. We use Glauber's theory of quantum coherence to predict the coincidence probability of realistic broadband photons in HOM experiments in a nonrelativistic setting. We extend the quantum field theoretical framework previously developed to describe the deformation of the spectral profile of single photons in curved spacetimes to a multiphoton framework, which is exact for inertial observers in a flat spacetime and an approximation when observers are located in a curved spacetime. We find that, in case of frequency entangled photons, a mutual redshift between the sender and the receiver can change the coincidence statistics from photon bunching to photon antibunching and vice versa. This implies that the (anti)symmetry of the photonic spectral wave function is an observer dependent notion and that this can be probed via HOM experiments in a relativistic setting.
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In: Physical Review D, Vol. 105, No. 10, 105016, 20.05.2022.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Observer dependence of photon bunching: The influence of the relativistic redshift on Hong-Ou-Mandel interference
AU - Barzel, Roy
AU - Bruschi, David Edward
AU - Schell, Andreas W.
AU - Laemmerzahl, Claus
N1 - Funding Information: R. B. and A. W. S. were funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy—EXC-2123 QuantumFrontiers—390837967. We further gratefully acknowledge support through the TerraQ initiative from the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)—Project-ID 434617780—SFB 1464 and the Research Training Group 1620 “Models of Gravity.”
PY - 2022/5/20
Y1 - 2022/5/20
N2 - We study the influence of the relativistic redshift on Hong-Ou-Mandel (HOM) interference and present a genuine quantum test of general relativity. We use Glauber's theory of quantum coherence to predict the coincidence probability of realistic broadband photons in HOM experiments in a nonrelativistic setting. We extend the quantum field theoretical framework previously developed to describe the deformation of the spectral profile of single photons in curved spacetimes to a multiphoton framework, which is exact for inertial observers in a flat spacetime and an approximation when observers are located in a curved spacetime. We find that, in case of frequency entangled photons, a mutual redshift between the sender and the receiver can change the coincidence statistics from photon bunching to photon antibunching and vice versa. This implies that the (anti)symmetry of the photonic spectral wave function is an observer dependent notion and that this can be probed via HOM experiments in a relativistic setting.
AB - We study the influence of the relativistic redshift on Hong-Ou-Mandel (HOM) interference and present a genuine quantum test of general relativity. We use Glauber's theory of quantum coherence to predict the coincidence probability of realistic broadband photons in HOM experiments in a nonrelativistic setting. We extend the quantum field theoretical framework previously developed to describe the deformation of the spectral profile of single photons in curved spacetimes to a multiphoton framework, which is exact for inertial observers in a flat spacetime and an approximation when observers are located in a curved spacetime. We find that, in case of frequency entangled photons, a mutual redshift between the sender and the receiver can change the coincidence statistics from photon bunching to photon antibunching and vice versa. This implies that the (anti)symmetry of the photonic spectral wave function is an observer dependent notion and that this can be probed via HOM experiments in a relativistic setting.
UR - http://www.scopus.com/inward/record.url?scp=85131304436&partnerID=8YFLogxK
U2 - 10.48550/arXiv.2202.07950
DO - 10.48550/arXiv.2202.07950
M3 - Article
VL - 105
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 10
M1 - 105016
ER -