Simulation of a modified Hubbard model with a chemical potential using a meron-cluster algorithm

TL;DR

This paper demonstrates a new simulation method for a modified Hubbard model using a meron-cluster algorithm, enabling better analysis of its properties and revealing evidence of superconductivity.

Contribution

It introduces a novel application of the meron-cluster algorithm to simulate a modified Hubbard model with a chemical potential.

Findings

Evidence of a superconducting state in the model

Improved simulation capabilities for Hubbard-like models

Validation of the meron-cluster algorithm's effectiveness

Abstract

We show how a variant of the Hubbard model can be simulated using a meron-cluster algorithm. This provides a major improvement in our ability to determine the behavior of these types of models. We also present some results that clearly demonstrate the existence of a superconducting state in this model.