2012/11/19 by Naoum Karchev, Karchev, Naoum
Physics and Astronomy · Mathematics · #Black Holes and Theoretical Physics #Algebraic structures and combinatorial models #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.1211.4509
The present paper is a short review of different path integral representations of the partition function of quantum spin systems. To begin with, I consider coherent states for SU(2) algebra. Different parameterizations of the coherent states lead to different path integral representations. They all are unified within an U(1) gauge theory of quantum spin systems.