Critical behavior of noninteracting spin waves
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Abstract
Monte Carlo techniques are used to show that a free-spin-wave theory of the quantum Heisenberg spin-1/2 ferromagnet, formulated to accurately represent the state space of the underlying system, predicts the critical temperature of the interacting theory to within 1% and critical exponents to within a factor of two.
Keywords
Field Theory Elementary Particle State Space Quantum Field Theory Critical Temperature
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© Plenum Publishing Corporation 1987