Singlet pairing in the double chain t-J model

TL;DR

This paper explores singlet superconductivity in a lightly doped double chain t-J model using bosonization, highlighting a scenario where all spin excitations are gapful, which could inform understanding of unconventional superconductivity.

Contribution

It introduces a bosonization-based analysis of singlet pairing in the double chain t-J model with fully gapped spin excitations, a novel approach in this context.

Findings

Identification of singlet pairing in the double chain t-J model

All spin excitations remain gapful in the scenario

Potential implications for unconventional superconductivity

Abstract

Applying the bosonization procedure to constrained fermions in the framework of the one dimensional t-J model we discuss a scenario of singlet superconductivity in a lightly doped double chain where all spin excitations remain gapful.