REVIEW 7 cited by
Tachyonic Instability and Dynamics of Spontaneous Symmetry Breaking
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
abstract
Spontaneous symmetry breaking usually occurs due to the tachyonic (spinodal) instability of a scalar field near the top of its effective potential at $\phi = 0$. Naively, one might expect the field $\phi$ to fall from the top of the effective potential and then experience a long stage of oscillations with amplitude O(v) near the minimum of the effective potential at $\phi = v$ until it gives its energy to particles produced during these oscillations. However, it was recently found that the tachyonic instability rapidly converts most of the potential energy V(0) into the energy of colliding classical waves of the scalar field. This conversion, which was called "tachyonic preheating," is so efficient that symmetry breaking typically completes within a single oscillation of the field distribution as it rolls towards the minimum of its effective potential. In this paper we give a detailed description of tachyonic preheating and show that the dynamics of this process crucially depend on the shape of the effective potential near its maximum. In the simplest models where $V(\phi) \sim -m^2\phi^2$ near the maximum, the process occurs solely due to the tachyonic instability, whereas in the theories $-\lambda\phi^n$ with n > 2 one encounters a combination of the effects of tunneling, tachyonic instability and bubble wall collisions.
Forward citations
Cited by 7 Pith papers
-
Can the universe be matter-dominated after a supercooled first-order phase transition?
After a supercooled first-order phase transition, the scalar field's equation of state is set by the bubble-wall Lorentz factor γ*, and matter domination is delayed until a/a* ≃ γ* in the free-streaming limit.
-
Feebly-Interacting Peccei-Quinn Model
A feebly-interacting PQ scalar with large wave-function renormalization can generate a large axion decay constant while keeping all mass scales near the TeV scale, predicting a light PQ Higgs and new dark matter scenarios.
-
Memoirs of the curvaton: non-perturbative non-Gaussianity and supermassive primordial black holes
Curvaton self-interactions in non-quadratic potentials produce a local non-Gaussian map that enables supermassive primordial black hole formation at peak amplitudes of order 10^{-5} while remaining consistent with μ-d...
-
Tachyonic particle production: quantum 2PI formalism with momentum exchanging collisions
Presents a self-consistent reduction of non-local next-to-leading-order 2PI equations to local quantum kinetic equations that incorporate momentum exchange during tachyonic instabilities.
-
Torsion induced current-scalaron coupling in Einstein-Cartan gravity
In Einstein-Cartan gravity, torsion-current couplings induce scalaron-current and scalaron Chern-Simons interactions, with explicit decay constants and a classification of their asymptotic behavior.
-
Potential Surge Preheating: enhanced resonance from potential features
Localized Gaussian features added to the quadratic inflaton potential near its minimum enhance preheating and can drive the equation of state to a radiation-like value, leaving distinctive gravitational wave and Neff ...
-
Implication of preheating on gravity assisted baryogenesis in $R^2$-Higgs inflation
Preheating in R2-Higgs inflation sets the reheating temperature, and matching the observed baryon asymmetry fixes the baryogenesis scale to about 2.1 to 2.8 x 10^-5 M_Planck for xi_H between 1 and 10.
Discussion (0). Continue with ORCID to comment.