Phase transitions in a holographic s+d model from the 4D Einstein-Gauss-Bonnet gravity

Abstract

In this work, the phase structure of a holographic s+d model with quartic potential terms from the 4D Einstein-Gauss-Bonnet gravity is studied in the probe limit. We first show the $q_d-\mu$ phase diagram with a very small value of the Gauss-Bonnet coefficient $\alpha =1\times 10^{-7}$ and in absence of the quartic terms to locate the suitable choice of the value of $q_d$, where the system admits coexistent s+d solutions. Then we consider various values of the Gauss-Bonnet coefficient $\alpha$ and present the $\alpha -\mu$ phase diagram to show the influence of the Gauss-Bonnet term on the phase structure. We also give an example of the reentrant phase transition which is also realized in the holographic s+s and s+p models. After that we confirm the universality of the influence of the quartic term with coefficient ${\lambda }_d$ on the d-wave solutions, which is similar to the case of s-wave and p-wave solutions previously studied in the s+p model. Finally we give the dependence of the special values of the quartic term coefficient ${\lambda }_d$ on the Gauss-Bonnet coefficient $\alpha$, below which the d-wave condensate grows to an opposite direction at the (quasi-)critical point, which is useful in realizing 1st order phase transitions in further studies of the holographic d-wave superfluids.

7 pages, 9 figures

References in corpus (16)

• Viscosity in Strongly Interacting Quantum Field Theories from Black Hole Physics
• Building an AdS/CFT superconductor
• Linear Confinement and AdS/QCD
• Viscosity Bound and Causality Violation
• On Taking the $D\to 4$ limit of Gauss-Bonnet Gravity: Theory and Solutions
• Shear Viscosity from Effective Couplings of Gravitons
• Gauge gravity duality for d-wave superconductors: prospects and challenges
• Gauss-Bonnet Holographic Superconductors
• Competing Holographic Orders
• A Note on Gauss-Bonnet Holographic Superconductors
• Analytical Studies on Holographic Superconductors in Gauss-Bonnet Gravity
• Competing s-wave orders from Einstein-Gauss-Bonnet gravity
• Spontaneous current in an holographic s+p superfluid
• Competition between s-wave order and d-wave order in holographic superconductors
• Holographic p-wave superfluid in Gauss-Bonnet gravity
• Holographic superconductors in 4D Einstein-Gauss-Bonnet gravity with backreactions