DECAY OF COSMOLOGICAL CONSTANT AS BOSE CONDENSATE EVAPORATION

2000/12/21 by Irina Dymnikova, IRINA DYMNIKOVA, Maxim Yu. Khlopov +1 · 6 citations
Engineering · Physics and Astronomy · #Bose–Einstein condensate #Constant (computer programming) #Cosmological constant #Cosmology and Gravitation Theories #Evaporation #False vacuum #Inflation (cosmology) #Material Science and Thermodynamics #Quantum Electrodynamics and Casimir Effect #Scalar (mathematics) #Spontaneous symmetry breaking #Symmetry (geometry) #Vacuum energy #astro-ph

paper · pdf · doi:10.1142/s0217732300002966

published as Mod.Phys.Lett. A15 (2000) 2305-2314

openalex publication_date 2000/12/21 · arxiv created 2001/02/13 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We consider the process of decay of symmetric vacuum state as evaporation of a Bose condensate of physical Higgs particles, defined over asymmetric vacuum state. Energy density of their self-interaction is identified with cosmological constant Λ in the Einstein equation. Λ decay then provides dynamical realization of spontaneous symmetry breaking. The effective mechanism is found for damping of coherent oscillations of a scalar field, leading to slow evaporation regime as the effective mechanism for Λ decay responsible for inflation without special fine-tuning of the microphysical parameters. This mechanism is able to incorporate reheating, generation of proper primordial fluctuations, and nonzero cosmological constant today.

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