Weak and strong quantum vacua in Bianchi type-I universes
- 15 February 1985
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 31 (4) , 742-753
- https://doi.org/10.1103/physrevd.31.742
Abstract
Using several physical criteria, we show that a reasonable quantum vacuum can be defined in Bianchi type-I universes, at the cosmological singularity (and the asymptotic far future region), provided the initial expansion would not be very violent.Keywords
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