REVIEW 7 cited by
Oscillons and Dark Matter
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
Signed reviews
abstract
Oscillons are bound states sustained by self-interactions that appear in rather generic scalar models. They can be extremely long-lived and in the context of cosmology they have a built-in formation mechanism - parametric resonance instability. These features suggest that oscillons can affect the standard picture of scalar ultra-light dark matter (ULDM) models. We explore this idea along two directions. First, we investigate numerically oscillon lifetimes and their dependence on the shape of the potential. We find that scalar potentials that occur in well motivated axion-like models can lead to oscillons that live up to $10^8$ cycles or more. Second, we discuss the observational constraints on the ULDM models once the presence of oscillons is taken into account. For a wide range of axion masses, oscillons decay around or after matter-radiation equality and can thus act as early seeds for structure formation. We also discuss the possibility that oscillons survive up to today. In this case they can most easily play the role of dark matter.
Forward citations
Cited by 7 Pith papers
-
Soft Oscillons
Scalar fields with plateau potentials support soft oscillons: localized, long-lived oscillations with arbitrarily large radius, frequency set by the radius, and evaporation power scaling linearly or quadratically with radius.
-
Excited oscillons and charge-swapping
Charge-swapping solitons in the complex phi^6 model are reinterpreted as real oscillons with an imaginary-direction excitation, and a two-dimensional collective model reproduces the dynamics.
-
Standard Model Effective Field Theory and Oscillons
The SMEFT operator O6=(Φ†Φ)³ extends SU(2) electroweak oscillon lifetimes by orders of magnitude at the physical mH/mW=1.556 for couplings below current bounds.
-
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.
-
Constraining the inflaton potential with gravitational waves from oscillons
The rapid decay of an oscillon-dominated post-inflation phase produces induced gravitational waves strong enough that the BBN/CMB bound on relativistic species excludes significant regions of inflaton mass–coupling pa...
-
Fragileness of Exact I-ball/Oscillon
Exact I-ball/oscillons, despite exactly conserving their adiabatic invariant, are fragile: small perturbations grow in Floquet resonance bands and break the configuration into a smaller one.
-
The power of SKA to Constrain cosmological gravitational-wave backgrounds below the astrophysical foreground noise
Cosmological gravitational wave backgrounds from phase transitions, domain walls, and condensate fragmentation are capped far below the astrophysical foreground by requiring that compact dark matter subhalos, which SK...
Discussion (0). Continue with ORCID to comment.