Determinant representation for a quantum correlation function of the lattice sine-Gordon model
(1995)
Exact Perturbative Solution of the Kondo Problem
Physical Review Letters American Physical Society (APS) 75:24 (1995) 4492-4495
A test theory of the local structure of spacetime: a Finslerian approach
Classical and Quantum Gravity 12:1 (1995) 273-278
Abstract:
For rival theories within the framework of the test theory of Mansouri - Sexl a geometrical setting in terms of Finsler geometry has been found. It is shown that the time dilation and length contraction parameters measure the deviation from a Riemannian geometry.Dual field approach to correlation functions in the Heisenberg xxz spin Chain
Recent Progress in Statistical Mechanics and Quantum Field Theory: Department of Physics & Astronomy, University of Southern California, 16-21 May 1994 World Scientific Publishing Company Inc. (1995)
Abstract:
We study zero temperature correlation functions of the spin-$1\over 2$ Heisenberg XXZ model in the critical regime $-1< \Delta\leq 1$ in a magnetic field by means of the {\tenit Dual Field Approach}. We show for one particular example how to derive determinant representations for correlation functions and how to use these to embed the correlation functions in integrable systems of integro-difference equations (IDE). These IDE are associated with a Riemann-Hilbert problem.A Lattice Boltzmann Model of Binary-Fluid Mixtures
EPL (Europhysics Letters) IOP Publishing 32:6 (1995) 463-468