2002/06/13 by Yoav Bergner, Y. Bergner, Luís M. A. Bettencourt +1 · 13 citations
Mathematics · Physics and Astronomy · #Action (physics) #Bubble #Classical mechanics #Cold Atom Physics and Bose-Einstein Condensates #Context (archaeology) #Field (mathematics) #Geometry #Mathematical physics #Mathematics #Mechanics #Physics #Quantum #Quantum dynamics #Quantum field theory #Quantum mechanics #Quantum, superfluid, helium dynamics #Scalar (mathematics) #Scalar field #Theoretical and Computational Physics #cond-mat #hep-lat #hep-ph #hep-th #nlin.PS
paper · pdf · doi:10.1103/physrevd.68.025014
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 68(2) (American Physical Society) · 12 pages, multiple figures
arxiv created 2002/06/13 · openalex publication_date 2003/07/15 · arxiv updated 2014/11/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study the dynamical evolution of a phase interface or bubble in the context of a \ensuremathλ\ensuremathφ4+g\ensuremathφ6 scalar quantum field theory. We use a self-consistent mean-field approximation derived from a 2PI effective action to construct an initial value problem for the expectation value of the quantum field and two-point function. We solve the equations of motion numerically in 1+1 dimensions and compare the results to the purely classical evolution. We find that the quantum fluctuations dress the classical profile, affecting both the early time expansion of the bubble and the behavior upon collision with a neighboring interface.