Instability of de Sitter space on short time scales

Details Instability of de Sitter space on short time scales Instability of de Sitter space on short time scales

Jun 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phrvd..33.3519t&link_type=abstract

Physical Review D (Particles and Fields), Volume 33, Issue 12, 15 June 1986, pp.3519-3525

Physics

26

Fundamental Problems And General Formalism, Origin And Formation Of The Universe

Scientific paper

We consider the Einstein gravitational field equations coupled to the expectation value of the stress tensor in a real scalar field theory with arbitrary mass and coupling to curvature. We consider small oscillations of the metric and linearize the response of the quantum wave functional and the stress-tensor expectation value. In a small-time approximation we find unstable oscillations for a minimally coupled field and stable oscillations in the case of conformal coupling.

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