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Non-topological solitons and quasi-solitons
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Non-topological solitons and quasi-solitons
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Solitons in relativistic field theories are not necessarily topologically charged. In particular, non-topological solitons -- known as Q-balls -- arise naturally in nonlinear field theories endowed with attractive interactions and internal symmetries. Even without stabilizing internal symmetries, quasi-solitons known as oscillons, which are long-lived, can also exist. Both Q-balls and oscillons have significant applications in cosmology and particle physics. This review is an updated account of the intriguing properties and dynamics of these non-topological solitons and quasi-solitons, as well as their important roles in early-universe scenarios and particle physics models.
Forward citations
Cited by 9 Pith papers
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Multi-species Dark Matter with Warmth and Randomness
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Standard Model Effective Field Theory and Oscillons
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Oscillon Floquet Modes and the Operators that Excite Them
Relativistic Floquet modes of the oscillon are expressed in elementary functions, and their quantum creation/annihilation operators are shown to satisfy the oscillator algebra at the computed order.
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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.
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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-b...
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Gauged Q-balls in flat potentials
Gauged Q-balls in flat potentials are qualitatively similar to thin-wall versions, with analytic approximations matching numerics and Proca Q-balls interpolating between global and gauged regimes.
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Preheating and oscillon formation in Einstein-scalar-Gauss-Bonnet gravity
Simulations in Einstein-scalar-Gauss-Bonnet gravity show oscillons form with similar properties to standard cases but trigger EFT breakdown for large couplings via high local curvatures.
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Self-resonance preheating in deformed attractor models: oscillon formation and evolution
Deformed alpha-attractor T-models with a Gaussian feature near the minimum yield more smaller shorter-lived oscillons during self-resonance preheating, suppressing energy in oscillons and altering the high-frequency g...
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