The n-particle gluon radiation spectrum in shockwave scattering is a generalized Susskind-Glogower squeezed coherent state, and multi-graviton radiation follows similarly via double copy, with feasible large squeezing parameters ~ln(n_bar) leading to enhanced quantum noise in gravitational wave sp
Carney, Comments on Graviton Detection, inGravity, Strings and Fields: A Conference in Honour of Gordon Semenoff(2024) arXiv:2408.00094 [gr-qc]
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Superradiant axion-like-particle clouds around rotating black holes can generate multimode squeezed graviton states with 10^6-10^7 correlated quanta showing polarization correlations and quantum-noise signatures potentially detectable by future interferometers.
Correlated sensing with thermal-state resonant detectors enables statistical tests via symmetric correlators to reveal quantum noise characteristics of gravitons in two- and three-detector tabletop configurations.
Proposes that excess photon luminosity from hydrogen atoms absorbing stellar gravitons could serve as a detection signal.
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Detection of Gravitons by Measuring Excess of Photon Luminosities from Interstellar and Intergalactic Hydrogen
Proposes that excess photon luminosity from hydrogen atoms absorbing stellar gravitons could serve as a detection signal.