On the semiclassical mass of ${\mathbb S}^2$-kinks

Details On the semiclassical mass of ${\mathbb S}^2$-kinks On the semiclassical mass of ${\mathbb S}^2$-kinks

2009-06-06

arxiv.org/abs/0906.1258v2

Physics

High Energy Physics

High Energy Physics - Theory

RevTex file, 15 pages, 2 figures. Version to appear in Journal of Physics A

Scientific paper

One-loop mass shifts to the classical masses of stable kinks arising in a
massive non-linear ${\mathbb S}^2$-sigma model are computed. Ultraviolet
divergences are controlled using the heat kernel/zeta function regularization
method. A comparison between the results achieved from exact and
high-temperature asymptotic heat traces is analyzed in depth.

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