Embedding massive flavor in ABJM

TL;DR

This paper introduces massive fundamental matter into the ABJM model using D6-branes, analyzes phase transitions and meson spectra at finite temperature, and computes conductivities in different phases.

Contribution

It presents a novel holographic setup for massive flavors in ABJM and explores phase behavior, meson spectra, and conductivities at finite temperature.

Findings

Identifies two solution types at finite temperature with a phase transition.

Finds massive scalar meson modes similar to D3-D7 systems.

Calculates conductivities in both phases.

Abstract

We add massive fundamental matter to the ABJM model by adding D6-branes wrapped asymptotically over RP3. We find two types of solutions at finite temperature, one that enters the black hole and one that ends before the black hole. We analyze the behavior of the free energy as a function of temperature, and find that the system exhibits a phase transition between the two types of solutions, similar to what happens in the D3-D7 system. We also analyze the meson spectrum in the model and find several massive scalar modes, again, quite like the D3-D7 system. We end with a calculation of the conductivities in the two phases.