Memory in de Sitter space and Bondi-Metzner-Sachs-like supertranslations
Journal Article
·
· Physical Review D
- Univ. of Wisconsin, Madison, WI (United States). Dept. of Physics; High Energy Accelerator Research Organization (KEK), Tsukuba (Japan). KEK Theory Center. IPNS; DOE/OSTI
- Inst. for Basic Science, Daejeon (Korea, Republic of). Center for Theoretical Physics of the Universe
- Univ. of Wisconsin, Madison, WI (United States). Dept. of Physics
It is well known that the memory effect in flat spacetime is parametrized by the Bondi-Metzner-Sachs (BMS) supertranslation. We investigate the relation between the memory effect and diffeomorphism in de Sitter spacetime. We find that gravitational memory is parametrized by a BMS-like supertranslation in the static patch of de Sitter spacetime. We also show a diffeomorphism that corresponds to gravitational memory in the Poincare/cosmological patch. Our method does not need to assume the separation between the source and the detector to be small compared with the Hubble radius, and can potentially be applicable to other Friedmann-Lemaitre-Robertson-Walker universes, as well as “ordinary memory” mediated by massive messenger particles.
- Research Organization:
- Univ. of Wisconsin, Madison, WI (United States)
- Sponsoring Organization:
- USDOE; USDOE Office of Science (SC), High Energy Physics (HEP)
- Grant/Contract Number:
- FG02-95ER40896
- OSTI ID:
- 1536340
- Alternate ID(s):
- OSTI ID: 1369489
- Journal Information:
- Physical Review D, Journal Name: Physical Review D Journal Issue: 2 Vol. 96; ISSN 2470-0010
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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