Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10720846 | Nuclear Physics B | 2005 | 24 Pages |
Abstract
Recently A. Zamolodchikov obtained a series of identities for the expectation values of the composite operator TT¯ constructed from the components of the energy-momentum tensor in two-dimensional quantum field theory. We show that if the theory is integrable the addition of a requirement of factorization at high energies can lead to the exact determination of the generic matrix element of this operator on the asymptotic states. The construction is performed explicitly in the Lee-Yang model.
Related Topics
Physical Sciences and Engineering
Mathematics
Mathematical Physics
Authors
Gesualdo Delfino, Giuliano Niccoli,