Phase structure of a holographic double monolayer Dirac semimetal

TL;DR

This paper explores the phase structure of a holographic double monolayer Dirac semimetal under various conditions, revealing complex temperature-dependent phases including a symmetric phase absent at zero temperature.

Contribution

It introduces a holographic model that captures the effects of temperature, charge density, and layer separation on exciton condensate formation in double monolayer Dirac semimetals.

Findings

Phase diagrams are mapped for various parameters.

Finite temperature introduces a symmetric phase.

Rich phase behavior emerges due to temperature effects.

Abstract

We study a holographic D3/probe-D5-brane model of a double monolayer Dirac semimetal in a magnetic field and in the presence of a nonzero temperature. Intra- and inter-layer exciton condensates can form by varying the balanced charge density on the layers, the spatial separation and the temperature. Constant temperature phase diagrams for a wide range of layer separations and charge densities are found. The presence of a finite temperature makes the phase diagrams extremely rich and in particular leads to the appearance of a symmetric phase which was missing at zero temperature.