Dynamical pairing correlations in the t-J model with non-adiabatic hole-phonon coupling

TL;DR

This paper investigates how hole-phonon interactions influence pairing mechanisms in the 2D Holstein t--J model, providing exact numerical results for binding energies and pairing susceptibilities.

Contribution

It offers the first exact diagonalization analysis of hole-phonon effects on pairing in the 2D Holstein t--J model.

Findings

Hole-phonon coupling enhances pairing tendencies.

Both s-wave and d-wave susceptibilities are affected.

Exact two-hole binding energies are computed.

Abstract

We examine the effects of hole-phonon interaction on the formation of hole pairs in the 2D Holstein t--J model. Using finite-lattice diagonalization techniques, we present exact results for the two-hole binding energy and the s-- and d-wave pairing susceptibilities.