Abstract:
The formalism of the quantum inverse scattering method is developed on a lattice in spacetime that imitates light cone coordinates. The zero-curvature representation makes it possible to introduce in a natural manner operators of displacement along the coordinate axes. The method is illustrated for the example of the sine-Gordon system.
Citation:
A. Yu. Volkov, L. D. Faddeev, “Quantum inverse scattering method on a spacetime lattice”, TMF, 92:2 (1992), 207–214; Theoret. and Math. Phys., 92:2 (1992), 837–842