Pointlike probes of superstring-theoretic superfluids

Abstract

In analogy with an experimental setup used in liquid helium, we use a pointlike probe to study superfluids which have a gravity dual. In the gravity description, the probe is represented by a hanging string. We demonstrate that there is a critical velocity below which the probe particle feels neither drag nor stochastic forces. Above this critical velocity, there is power-law scaling for the drag force, and the stochastic forces are characterized by a finite, velocity-dependent temperature. This temperature participates in two simple and general relations between the drag force and stochastic forces. The formula we derive for the critical velocity indicates that the low-energy excitations are massless, and they demonstrate the power of stringy methods in describing strongly coupled superfluids.

17 pages, 2 figures, added a figure, a reference, and moved material to an appendix

References in corpus (22)

• Building an AdS/CFT superconductor
• Energy loss of a heavy quark moving through N=4 supersymmetric Yang-Mills plasma
• Unparticle Physics
• Drag force in AdS/CFT
• Heavy Quark Diffusion in Strongly Coupled $\mathbb{N}=4$ Yang Mills
• Holographic model of superfluidity
• Holographic superconductivity in M-Theory
• Superconductors from Superstrings
• Momentum fluctuations of heavy quarks in the gauge-string duality
• Consistent supersymmetric Kaluza--Klein truncations with massive modes
• Energy Loss of Heavy Quarks from Asymptotically AdS Geometries
• The gravity dual to a quantum critical point with spontaneous symmetry breaking
• Thermal Transport and Drag Force in Improved Holographic QCD
• Thermal Noise and Stochastic Strings in AdS/CFT
• Quantum critical superconductors in string theory and M-theory
• Low-temperature behavior of the Abelian Higgs model in anti-de Sitter space
• Stochastic trailing string and Langevin dynamics from AdS/CFT
• Sound modes in holographic superfluids
• Fourth sound of holographic superfluids
• A New Mechanism of Quark Energy Loss
• Drag and jet quenching of heavy quarks in a strongly coupled N=2* plasma
• Hadronization at the AdS wall

Cited by in corpus (9)

• A theory of first order dissipative superfluid dynamics
• Transport in holographic superfluids
• Jet quenching in hot strongly coupled gauge theories simplified
• Universal chiral conductivities for low temperature holographic superfluids
• Velocity Statistics in Holographic Fluids: Magnetized Quark-Gluon Plasma and Superfluid Flow
• Flavor Superconductivity & Superfluidity
• The gauge-string duality and heavy ion collisions
• Energy Loss Calculations of Moving Defects for General Holographic Metrics
• Finite-size effects for jet quenching