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

Sugumi Kanno, Jiro Soda

Research output: Contribution to journalArticlepeer-review

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 inter- ferometry. 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.

Original languageEnglish
JournalUnknown Journal
Publication statusPublished - Oct 17 2018

All Science Journal Classification (ASJC) codes

  • General

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