Work

Quenches and confinement in a Heisenberg–Ising spin ladder

Year: 2022

Type: article

Abstract: We consider the quantum quench dynamics of a Heisenberg–Ising spin ladder which is an archetypal model in which confinement of elementary excitations is triggered by internal interactions rather than an external field. We show that the confinement strongly affects the light cone structure of correlation functions providing signatures of the velocities of the mesons of the model. We also show that the meson masses can be measured from the real time analysis of the evolution of the order parameter.

Source: Journal of Physics A Mathematical and Theoretical

DOI: 10.1088/1751-8121/ac5215

Authors: Gianluca Lagnese, Federica Maria Surace, Márton Kormos, Pasquale Calabrese

Institutions: Scuola Internazionale Superiore di Studi Avanzati, Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, The Abdus Salam International Centre for Theoretical Physics (ICTP), Budapest University of Technology and Economics

Language: English

Topic: Quantum many-body systems

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green