Nonequilibrium Goldstone phenomenon in tachyonic preheating

Sz Borsányi, A. Patkós, D. Sexty

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

The dominance of the direct production of elementary Goldstone waves is demonstrated in tachyonic preheating by numerically determining the evolution of the dispersion relation, the equation of state, and the kinetic power spectra for the angular degree of freedom of the complex matter field. The importance of the domain structure in the order parameter distribution for a quantitative understanding of the excitation mechanism is emphasized. Evidence is presented for the very early decoupling of the low-momentum Goldstone modes.

Original languageEnglish
Article number063512
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume68
Issue number6
DOIs
Publication statusPublished - 2003

Fingerprint

Dispersion Relation
Decoupling
Power Spectrum
Equation of State
decoupling
Order Parameter
Non-equilibrium
power spectra
equations of state
Momentum
degrees of freedom
Excitation
Kinetics
Degree of freedom
momentum
heating
kinetics
excitation
Evidence

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics
  • Mathematical Physics

Cite this

Nonequilibrium Goldstone phenomenon in tachyonic preheating. / Borsányi, Sz; Patkós, A.; Sexty, D.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 68, No. 6, 063512, 2003.

Research output: Contribution to journalArticle

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