Acoustic Analogue of Gravitational Wave
arXiv:1804.02182 · doi:10.1103/PhysRevD.98.064049
Abstract
We explore nonlinear perturbations in different static fluid systems. We find that the equations, corresponding to the perturbation of the integrals of motion, i.e; Bernoulli's constant and the mass flow rate, satisfy massless scalar field equation in a time dependent acoustic metric. When one is interested up to the second order behaviour of the perturbations, the emergent time dependent acoustic metric of the system, derived from the massless scalar field equations of the perturbations of the integrals of motion, has some astounding similarities with the metric describing gravitational wave in Minkowski spacetime.
References in corpus (20)
- Observation of Gravitational Waves from a Binary Black Hole Merger
- Theory of Bose-Einstein condensation in trapped gases
- Analogue Gravity
- Acoustic black holes: horizons, ergospheres, and Hawking radiation
- Superflow in a toroidal Bose-Einstein condensate: an atom circuit with a tunable weak link
- Optical ferris wheel for ultracold atoms
- Sonic black holes in dilute Bose-Einstein condensates
- Toroidal optical dipole traps for atomic Bose-Einstein condensates using Laguerre-Gaussian beams
- Time-Averaged Adiabatic Potentials: Versatile traps and waveguides for ultracold quantum gases
- Bose-Einstein condensation in large time-averaged optical ring potentials
- Critical properties and stability of stationary solutions in multi-transonic pseudo-Schwarzschild accretion
- The role of flow geometry in influencing the stability criteria for low angular momentum axisymmetric black hole accretion
- Perturbations on steady spherical accretion in Schwarzschild geometry
- Perturbation of mass accretion rate, associated acoustic geometry and stability analysis
- Relativistic sonic geometry for isothermal accretion in the Schwarzschild metric
- Acoustic geometry obtained through the perturbation of the Bernoulli's constant
- Relativistic sonic geometry for isothermal accretion in the Kerr metric
- Implications of nonlinearity for spherically symmetric accretion
- Nonlinear variations in axisymmetric accretion
- Second Order Perturbative Effects on the Acoustic Geometry