Thursday, July 5, 2012

1207.0942 (Alberto Alonso-Izquierdo et al.)

Kink fluctuation asymptotics and zero modes    [PDF]

Alberto Alonso-Izquierdo, Juan Mateos-Guilarte
In this paper we propose a refinement of the heat kernel/zeta function treatment of kink quantum fluctuations in scalar field theory, further analyzing the existence and implications of a zero energy fluctuation mode. Improved understanding of the interplay between zero modes and the kink heat kernel expansion delivers asymptotic estimations of one-loop kink mass shifts with remarkably higher precision than previously obtained by means of the standard Gilkey-DeWitt heat kernel expansion.
View original: http://arxiv.org/abs/1207.0942

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