Quantum discrimination for the universe

Akira Matsumura, Yasusada Nambu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We consider quantum discrimination between the Bunch-Davies vacuum and the stationary distribution. To get the theoretical limitation of the statistical discrimination, we assume the knowledge of qq, qp and pp correlations on a two-dimensional sphere (e.g. Last Scattering Surface). For a single direction observation with a short wave length, even if we know the qq, qp and pp correlations, the efficiency of the discrimination becomes bad, similar to the previous work B. Allen, et al (1999). However, if we can carry out the quantum measurement for 2l+1 directions, then the discrimination efficiency can be improved for the observation of a short wave length. (euqacation presented).

Original languageEnglish
Title of host publicationProceedings of the 28th Workshop on General Relativity and Gravitation in Japan, JGRG 2018
PublisherRikkyo University
Pages68-76
Number of pages9
ISBN (Electronic)9780000000002
Publication statusPublished - 2018
Externally publishedYes
Event28th Workshop on General Relativity and Gravitation in Japan, JGRG 2018 - Tokyo, Japan
Duration: Nov 5 2018Nov 9 2018

Publication series

NameProceedings of the 28th Workshop on General Relativity and Gravitation in Japan, JGRG 2018
Volume2

Conference

Conference28th Workshop on General Relativity and Gravitation in Japan, JGRG 2018
CountryJapan
CityTokyo
Period11/5/1811/9/18

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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