Antiferromagnetism and d-wave superconductivity in (doped) Mott insulators: A wave function approach

TL;DR

This paper introduces a wave function approach that unifies antiferromagnetism and d-wave superconductivity in doped Mott insulators, capturing key physical phenomena and excitations.

Contribution

It presents a novel Jastrow wave function framework that describes both antiferromagnetic and superconducting states in a unified manner.

Findings

Accurately describes antiferromagnetism at zero doping.

Shows development of d-wave superconductivity at finite doping.

Constructs nodal quasiparticles and spin excitations from the wave function.

Abstract

We propose a class of wave functions that provide a unified description of antiferromagnetism and d-wave superconductivity in (doped) Mott insulators. The wave function has a Jastrow form and prohibits double occupancies. In the absence of holes, the wave function describes antiferromagnetism accurately. Off diagonal long range order develops at finite doping and the superconducting order parameter has d-wave symmetry. We also show how nodal quasiparticles and neutral spin excitations can be constructed from this wave function.