Gravitational Waves at Strong Coupling from an Effective Action
Fëanor Reuben Ares, Oscar Henriksson, Mark Hindmarsh, Carlos Hoyos, Niko Jokela
Abstract
Using a holographic derivation of a quantum effective action for a scalar operator at strong coupling, we compute quasiequilibrium parameters relevant for the gravitational wave signal from a first-order phase transition in a simple dual model. We discuss how the parameters of the phase transition vary with the effective number of degrees of freedom of the dual field theory. Our model can produce an observable signal at LISA if the critical temperature is around a TeV, in a parameter region where the field theory has an approximate conformal symmetry.
Topics & Concepts
PhysicsObservableOperator (biology)Gravitational waveScalar fieldDegrees of freedom (physics and chemistry)Action (physics)Effective actionScalar (mathematics)Coupling (piping)Phase transitionQuantum electrodynamicsGravitationField (mathematics)Quantum mechanicsQuantum field theoryHolographyGravitational fieldClassical mechanicsConformal mapEffective field theoryPhase (matter)QuantumCritical phenomenaSimple (philosophy)Massless particleQuantum gravityConformal symmetryScalar field theoryQuantum phase transitionSIGNAL (programming language)Quantum opticsBlack Holes and Theoretical PhysicsPulsars and Gravitational Waves ResearchCosmology and Gravitation Theories