Off-diagonal Flavour Susceptibilities from AdS/CFT

Abstract

We study flavour susceptibilities in the $\mathcal{N}=4$ SU(N) super Yang-Mills plasma coupled to two quark flavours at strong coupling and large $N$ by means of its gravity dual. The off-diagonal susceptibility is 1/N-suppressed and we compute it as a one-loop effect on the gravity side. Contrary to naive extrapolation from perturbative results, it attains a finite value in the infinite-coupling limit. Moreover, its parametric form is independent of whether or not meson bound states exist in the plasma. We conclude that caution must be exercised when drawing conclusions about the QCD plasma from lattice calculations of quark susceptibilities.

4 pages

References in corpus (17)

• The chiral and deconfinement aspects of the QCD transition
• The QCD equation of state with dynamical quarks
• Viscosity, Black Holes, and Quantum Field Theory
• Fluctuations of conserved charges at finite temperature from lattice QCD
• Holographic Phase Transitions with Fundamental Matter
• Photon and dilepton production in supersymmetric Yang-Mills plasma
• Holographic spectral functions and diffusion constants for fundamental matter
• Finite Temperature Spectral Densities of Momentum and R-Charge Correlators in $\mathbb{N}=4$ Yang Mills Theory
• Thermal spectral functions of strongly coupled N=4 supersymmetric Yang-Mills theory
• NNLO hard-thermal-loop thermodynamics for QCD
• D3-D7 Quark-Gluon Plasmas at Finite Baryon Density
• Holographic vector mesons from spectral functions at finite baryon or isospin density
• Three-dimensional physics and the pressure of hot QCD
• Are there hadronic bound states above the QCD transition temperature?
• Bright branes for strongly coupled plasmas
• Holographic Duals of Quark Gluon Plasmas with Unquenched Flavors
• Correlations and fluctuations from lattice QCD

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