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Open Quantum Systems Decoherence Entanglement Theory Quantum Correlations

Possible detection of nonclassical primordial gravitational waves with Hanbury Brown - Twiss interferometry

arXiv
Authors: Sugumi Kanno, Jiro Soda

Year

2018

Paper ID

23978

Status

Preprint

Abstract Read

~2 min

Abstract Words

88

Citations

N/A

Abstract

We consider possible detection of nonclassicality of primordial gravitational waves (PGWs) by applying Hanbury Brown - Twiss (HBT) interferometry to cosmology. We characterize the nonclassicality of PGWs in terms of sub-Poissonian statistics that can be measured by the HBT interferometry. We show that the presence of classical sources during inflation makes us possible to detect nonclassical PGWs with the HBT interferometry. We present two examples that realize the classical sources during inflation. It turns out that PGWs with frequencies higher than 10 kHz enable us to detect their nonclassicality.

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  • This paper contributes to the Entanglement Theory & Quantum Correlations research area in the Quantum Articles archive.
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  • We consider possible detection of nonclassicality of primordial gravitational waves (PGWs) by applying Hanbury Brown - Twiss (HBT) interferometry to cosmology.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1810.07604 [2] arXiv https://arxiv.org/abs/1810.07604 [3] Publisher https://arxiv.org/abs/1810.07604

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