Spectral properties and phase diagram of correlated lattice bosons in an optical cavity within the B-DMFT

TL;DR

This paper investigates the spectral properties and phase diagram of correlated lattice bosons in an optical cavity using the Bose-Hubbard model and bosonic dynamical mean-field theory, providing insights into strongly correlated bosonic systems.

Contribution

It applies B-DMFT to analyze static and spectral properties of lattice bosons with infinite-range interactions, highlighting new insights and comparisons with other methods and experiments.

Findings

Identification of spectral features of correlated bosons in cavities

Comparison of B-DMFT results with other theoretical approaches

Insights into phase transitions in the system

Abstract

We use the Bose-Hubbard model with an effective infinite-range interaction to describe the correlated lattice bosons in an optical cavity. We study both static and spectral properties of such system within the bosonic dynamical mean-field theory (B-DMFT), which is the state of the art method for strongly correlated bosonic systems. Both similarities and differences are found and discussed between our results and these obtained within different theoretical methods and experiment.