1983 Volume 52 Issue 3 Pages 942-951
Recently Haldane has derived the Bethe ansatz equations describing the ground state properties of the massive Thirring model with finite ‘hole’ density (the quantum sine-Gordon model with finite soliton density). His derivation is explicitly confirmed here using a particular cutoff scheme, and his solutions of the equations in various limits are reviewed with complementary results. The commensurate-incommensurate transition in the two-dimensional sine-Gordon model with a uniaxial misfit is examined at finite temperatures using the results obtained in the massive Thirring model.
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