2001/11/02 by John Cardy · 1 citation
Physics and Astronomy · #cond-mat.stat-mech
published as Statistical Field Theories, A. Cappelli and G.Mussardo eds, Kluwer, 2002. · 5 pages; talk presented at Workshop on Statistical Field Theory, Como, June, 2001
arxiv created 2001/11/02 · arxiv updated 2009/11/30
The talk describes recent progress in understanding the behaviour of the stress tensor and its correlation functions at a critical point of a generic quenched random system. The topics covered include:(i) the stress tensor in random systems considered as deformed pure systems; (ii) correlators of the stress tensor at a random fixed point: expectations from the replica approach and c-theorem sum rules; (iii) partition function on a torus; (iv) how the stress tensor enters into correlation functions: subtleties with Kac operators.