Excitation Spectrum at the Yang-Lee Edge Singularity of the 2D Ising model

Details Excitation Spectrum at the Yang-Lee Edge Singularity of the 2D Ising model Excitation Spectrum at the Yang-Lee Edge Singularity of the 2D Ising model

2005-10-07

arxiv.org/abs/cond-mat/0510190v1

Physics

Condensed Matter

Statistical Mechanics

10 pages, 5 figures

Scientific paper

This paper studies the Yang-Lee edge singularity of 2-dimensional 2D Ising model through a quantum spin chain. In particular, finite-size scaling measurements on the quantum spin chain are used to determine the low-lying excitation spectrum and central charge at the Yang-Lee edge singularity. The measured values are consistent with predictions for the (A4, A1) minimal conformal field theory.

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