Thermodynamic limit of the two-spinon form factors for the zero field XXX chain

Abstract

In this paper we propose a method based on the algebraic Bethe ansatz leading to explicit results for the form factors of quantum spin chains in the thermodynamic limit. Starting from the determinant representations we retrieve in particular the formula for the two-spinon form factors for the isotropic XXX Heisenberg chain obtained initially in the framework of the $q$-vertex operator approach.

29 pages, Submission to SciPost, v2: revised version, several references added

References in corpus (3)

• Dynamical structure factor at small q for the XXZ spin-1/2 chain
• Fermionic structure in the sine-Gordon model: form factors and null-vectors
• Partial domain wall partition functions

Cited by in corpus (4)

• Exact real-time longitudinal correlation functions of the massive XXZ chain
• A thermal form factor series for the longitudinal two-point function of the Heisenberg-Ising chain in the antiferromagnetic massive regime
• Thermal form-factor expansion of the dynamical two-point functions of local operators in integrable quantum chains
• Boundary overlap in the open XXZ spin chain