A positive definite action for O(3)-symmetric vacuum decay that reduces to the standard tunneling potential method when O(4) symmetry is restored.
Gleiser,Pseudostable bubbles,Phys
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abstract
The evolution of spherically symmetric unstable scalar field configurations (``bubbles'') is examined for both symmetric (SDWP) and asymmetric (ADWP) double-well potentials. Bubbles with initial static energies $E_0\la E_{{\rm crit}}$, where $E_{{\rm crit}}$ is some critical value, shrink in a time scale determined by their linear dimension, or ``radius''. Bubbles with $E_0\ga E_{{\rm crit}}$ evolve into time-dependent, localized configurations which are {\it very} long-lived compared to characteristic time-scales in the models examined. The stability of these configurations is investigated and possible applications are briefly discussed.tic time-scales in the models examined. The stability of these configurations is investigated and possible applications are briefly discussed.
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Oscillons are reinterpreted as localized resonant modes from threshold or antibound modes via nonlinearity, with wobblerons as new kink-oscillon bound states.
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A positive definite formulation of vacuum decay with reduced symmetry
A positive definite action for O(3)-symmetric vacuum decay that reduces to the standard tunneling potential method when O(4) symmetry is restored.
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Unified theory of oscillons and modes
Oscillons are reinterpreted as localized resonant modes from threshold or antibound modes via nonlinearity, with wobblerons as new kink-oscillon bound states.
- Multi-field oscillons/I-balls in the Friedberg-Lee-Sirlin model