Numerical construction of metastable monopole and critical-bubble branches in the Coleman-Weinberg model identifies critical parameter μ_c=0.064352(1) where the monopole loses metastability via a saddle configuration with negative radial mode.
Kim, Large solitons flattened by small quan- tum corrections, Phys
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Hartree quantum fluctuations in 3+1D simulations of the Friedberg-Lee-Sirlin model produce a regime where fluctuations carry significant Noether charge, periodic charge exchange occurs, and some classically stable Q-balls become unstable.
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Metastable and critical-bubble branches of Coleman--Weinberg monopoles
Numerical construction of metastable monopole and critical-bubble branches in the Coleman-Weinberg model identifies critical parameter μ_c=0.064352(1) where the monopole loses metastability via a saddle configuration with negative radial mode.
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Quantum-Corrected Q-balls in the Friedberg-Lee-Sirlin Model
Hartree quantum fluctuations in 3+1D simulations of the Friedberg-Lee-Sirlin model produce a regime where fluctuations carry significant Noether charge, periodic charge exchange occurs, and some classically stable Q-balls become unstable.
- Multi-field oscillons/I-balls in the Friedberg-Lee-Sirlin model