Antiholons in one-dimensional t-J models

TL;DR

This paper demonstrates the presence of antiholons in the electron addition spectrum of the one-dimensional t-J model using a new hybrid Monte Carlo algorithm, highlighting their relevance at specific parameter values.

Contribution

The study introduces a hybrid Monte Carlo method to identify antiholons in the 1D t-J model, extending previous findings from the supersymmetric IS t-J model.

Findings

Antiholons are visible in the electron addition spectrum at J=2t.

Antiholons are also visible at J=0.5t, relevant for experiments.

The new algorithm effectively reveals quasiparticle features in the model.

Abstract

Using a newly developed hybrid Monte Carlo algorithm for the nearest-neighbor (n.n.) t-J model, we show that antiholons identified in the supersymmetric inverse squared (IS) t-J model are clearly visible in the electron addition spectrum of the n.n. t-J model at J=2t and also for J=0.5t, a value of experimental relevance.