New Results on the Phase Diagram of the FFXY Model: A Twisted CFT Approach

Details New Results on the Phase Diagram of the FFXY Model: A Twisted CFT Approach New Results on the Phase Diagram of the FFXY Model: A Twisted CFT Approach

2007-11-19

arxiv.org/abs/0711.2898v1

Physics

High Energy Physics

High Energy Physics - Theory

7 pages; talk given by G. Niccoli at "Path Integrals - New Trends and Perspectives International Conference", Max-Planck-Insti

Scientific paper

The issue of the number, nature and sequence of phase transitions in the fully frustrated XY (FFXY) model is a highly non trivial one due to the complex interplay between its continuous and discrete degrees of freedom. In this contribution we attack such a problem by means of a twisted conformal field theory (CFT) approach and show how it gives rise to the U (1)$\otimes Z_{2}$ symmetry and to the whole spectrum of excitations of the FFXY model.

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