出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：Within the non-relativistic potential scattering theory, we derive a generalized version of the Lüscher formula, which includes three-particle inelastic channels. We show that, even in the presence of the three-particle intermediate states, the discrete spectrum in a finite box is deter- mined by the infinite-volume elements of the scattering S-matrix up to corrections, exponentially suppressed in large volumes.
