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Chaotic thermalization in Yang-Mills-Higgs theory on a spacial lattice
Fecha
2009-08-06Registro en:
Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 80, n. 2, 2009.
1550-7998
1550-2368
10.1103/PhysRevD.80.025021
2-s2.0-69249152968
Autor
Universidade Estadual Paulista (UNESP)
Humboldt-Universität zu Berlin
Institución
Resumen
We analyze the Hamiltonian time evolution of classical SU(2) Yang-Mills-Higgs theory with a fundamental Higgs doublet on a spacial lattice. In particular, we study energy transfer and equilibration processes among the gauge and Higgs sectors, calculate the maximal Lyapunov exponents under randomized initial conditions in the weak-coupling regime, where one expects them to be related to the high-temperature plasmon damping rate, and investigate their energy and coupling dependence. We further examine finite-time and finite-size errors, study the impact of the Higgs fields on the instability of constant non-Abelian magnetic fields, and comment on the implications of our results for the thermalization properties of hot gauge fields in the presence of matter. © 2009 The American Physical Society.