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Dissipation, noise and vacuum decay in quantum field theory
Calzetta, Esteban A., 1958-; Roura, Albert; Verdaguer Oms, Enric, 1950-
Universitat de Barcelona
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 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.
26-06-2010
Teoria quàntica de camps
Buit
Efecte túnel
Sistemes oberts
Quantum field theory
Vacuum
Tunneling (Physics)
Open systems (Physics)
(c) American Physical Society, 2002
Artículo
American Physical Society
         

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Calzetta, Esteban A., 1958-; Roura, Albert; Verdaguer Oms, Enric, 1950-
Campos, Antonio; Calzetta, Esteban A., 1958-; Verdaguer Oms, Enric, 1950-