Comment on "Z2-slave-spin theory for strongly correlated fermions" + Reply to the Reply to the "Comment on ?Z2-slave-spin theory for strongly correlated" fermions?

TL;DR

This paper critically examines and discusses the findings of Ruegg et al. (2010) concerning the Z2-slave-spin theory for strongly correlated fermions, providing clarification and response to prior comments.

Contribution

It offers a detailed analysis and clarification of the Z2-slave-spin theory, addressing previous critiques and advancing understanding of strongly correlated fermion systems.

Findings

Clarification of the Z2-slave-spin theory results

Response to critiques and comments from prior discussions

Insights into strongly correlated fermion models

Abstract

We discusss the results published by Ruegg et al in PRB 81, 155118 (2010).