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Small Q balls
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We develop an adequate description of non-topological solitons with a small charge, for which the thin-wall approximation is not valid. There is no classical lower limit on the charge of a stable Q-ball. We examine the parameters of these small-charge solitons and discuss the limits of applicability of the semiclassical approximation.
Forward citations
Cited by 6 Pith papers
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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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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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PQ-ball and its Real Scalar Analogue in an Expanding Universe
3+1D lattice simulations show PQ-balls form from a rotating complex scalar and decay faster for stronger symmetry breaking, with lifetimes roughly scaling as v^4.
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Decay rate of PQ-ball
PQ-balls, Q-balls in a spontaneously broken U(1) theory, are metastable in vacuum and decay at a rate proportional to the square of their asymptotic field value.
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Q-ball perturbations with more details: linear analysis vs lattice
Q-ball perturbation theory is shown to remain valid for wavepacket amplitudes below about 10^-2 of the Q-ball background, and the analysis is extended to two-field FLS Q-balls.
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Enhancement of small-scale induced gravitational waves from the soliton/oscillon domination
Soliton or oscillon domination generates detectable induced gravitational waves, with spectra that constrain the lumps' lifetime, abundance, and separation.
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