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Dissipation, noise and vacuum decay in quantum field theory

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arxiv hep-ph/0101052 v2 pith:PPBFVHAO submitted 2001-01-05 hep-ph

Esteban Calzetta , Albert Roura , Enric Verdaguer This is my paper · ORCID
classification hep-ph
keywords decayfieldinteractionmodesquantumratetheoryvacuum
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We study the process of vacuum decay in quantum field theory focusing on the stochastic aspects of the interaction between long and short-wavelength modes. This interaction results in a diffusive behavior of the reduced Wigner function describing the state of the long-wavelength modes, and thereby to a finite activation rate even at zero temperature. This effect can make a substantial contribution to the total decay rate.

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  1. Cosmological Vacuum Decays from Schwinger-Keldysh Formalism

    gr-qc 2026-08 conditional novelty 5.0 of 10

    Tracing out short-wavelength modes in a radiation-dominated FLRW universe gives a non-Markovian, non-Gaussian Langevin equation for the order parameter, with explicitly computed memory and noise kernels.

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