4-12 November 2010
Morelia, Michoacan
Mexico/General timezone
- arteaga@ifm.umich.mx
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Contribution Oral contribution
Morelia, Michoacan
-
Hall C, Hotel Fiesta Inn
Hadronic and non-perturbative physics
The partition function of a ferromagnet up to three loops
Abstract content
The low-temperature behavior of ferromagnets with a spontaneously broken symmetry O(3) -> O(2) is analyzed within the perspective of effective Lagrangians. The leading coefficients of the low-temperature expansion for the partition function and the spontaneous magnetization are calculated up to three loops and the results are compared with the condensed matter literature. The model-independent and systematic effective field theory approach proves to be superior to conventional condensed matter methods such as spin-wave theory.