Form factors in finite volume II: Disconnected terms and finite temperature correlators

By B. Pozsgay, G. Takács. 2007

133 citations recorded by the source corpus.

Abstract Continuing the investigation started in a previous work, we consider form factors of integrable quantum field theories in finite volume, extending our investigation to matrix elements with disconnected pieces. Numerical verification of our results is provided by truncated conformal space approach. Such matrix elements are important in computing finite temperature correlation functions, and we give a new method for generating a low temperature expansion, which we test for the one-point function up to third order.

Subfields: Geometry and Topology, Nuclear and High Energy Physics, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/68647aa0e7f9ec27ddc5ebf4d8c55b03946dbeee

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Geometry and Topology

1. T. Yoshimura
2. B. Doyon
3. Pasquale Calabrese
4. J. Cardy

In Nuclear and High Energy Physics

1. O. Castro-Alvaredo
2. B. Doyon
3. Pasquale Calabrese
4. J. Cardy

In Statistical and Nonlinear Physics

1. B. Doyon
2. T. Yoshimura
3. Herbert Spohn

Citations in the corpus

• Emergent hydrodynamics in integrable quantum systems out of equilibrium (2016, background): “[83] that any multiparticle symmetric FF can be written solely in terms of the connected FFs.”
• Quantum quenches in integrable field theories (2009, background): “Even if presently there is still no complete proof of the exactness of (17), a step forward its rigorous derivation has been taken in the recent papers by Pozsgay and Takacs [30–32], who showed that (17) might be obtained in a rigorous way by putting the system in a finite volume, thus discretizing ”