Analogue Models for Emergent Gravity
arXiv:0909.3834
Abstract
Gravity stands out among the fundamental interactions because of its apparent incompatibility with having a quantum description. Moreover, thermodynamic aspects of gravitation theory appears as puzzling features of some classical solutions such as black holes. These and other aspects of gravitational theories have recently lead to the proposal that gravity might not be a fundamental interaction but rather an emergent phenomenon, a sort of hydrodynamic limit of some more fundamental theory. In order to further explore this possibility we shall here discuss two systems where such emergence of a gravitational dynamics is observed. We shall consider first the case of a non-relativistic Bose-Einstein condensate and then a more abstract model based on scalar fields living on a Riemannian manifold. This will allow us to put in evidence the general issues related to emergent gravity scenarios with a particular attention to the role and nature of Lorentz and diffeomorphism invariance.
47 pages. To appear in the Proceedings of the XVIII SIGRAV Conference, Cosenza, September 22-25, 2008
References in corpus (43)
- The Confrontation between General Relativity and Experiment
- Quantum Gravity at a Lifshitz Point
- Thermodynamics of Spacetime: The Einstein Equation of State
- Lorentz invariance with an invariant energy scale
- Modern tests of Lorentz invariance
- Noncommutative Field Theory and Lorentz Violation
- Nonstandard optics from quantum spacetime
- Spectral Dimension of the Universe in Quantum Gravity at a Lifshitz Point
- Generalized Lorentz invariance with an invariant energy scale
- Sonic analog of gravitational black holes in Bose-Einstein condensates
- Non-equilibrium Thermodynamics of Spacetime
- Classical and Quantum Mechanics of Free \k Relativistic Systems
- Distance Measurement and Wave Dispersion in a Liouville-String Approach to Quantum Gravity
- Very Special Relativity
- Lorentz invariance and quantum gravity: an additional fine-tuning problem?
- Sonic black holes in dilute Bose-Einstein condensates
- Analog gravity from Bose-Einstein condensates
- Lorentz symmetry breaking as a quantum field theory regulator
- General Very Special Relativity is Finsler Geometry
- A particle-number-conserving Bogoliubov method which demonstrates the validity of the time-dependent Gross-Pitaevskii equation for a highly condensed Bose gas
- Fate of gravitational collapse in semiclassical gravity
- Quantum Graphity: a model of emergent locality
- Probing semiclassical analogue gravity in Bose--Einstein condensates with widely tunable interactions
- Goldstone and Pseudo-Goldstone Bosons in Nuclear, Particle and Condensed-Matter Physics
- Renormalization of Lorentz violating theories
- Einstein Gravity as an emergent phenomenon?
- Acoustic propagation in fluids: an unexpected example of Lorentzian geometry
- Cosmological particle production in emergent rainbow spacetimes
- Analogue quantum gravity phenomenology from a two-component Bose-Einstein condensate
- 4d Deformed Special Relativity from Group Field Theories
- Backreaction in Acoustic Black Holes
- On the emergence of Lorentzian signature and scalar gravity
- Gravitational dynamics in Bose Einstein condensates
- Signature change events: A challenge for quantum gravity?
- Lorentz symmetry violation without violation of relativistic symmetry
- Analogue spacetime based on 2-component Bose-Einstein condensates
- Constraints on emergent gravity
- Dynamics of Pure Shape, Relativity and the Problem of Time
- Emergent General Relativity
- Statistical Mechanics of Graphity Models
- Subgroups of the Group of Generalized Lorentz Transformations and Their Geometric Invariants
- Topics in particle physics and cosmology beyond the standard model
- Classical fields method for a relativistic interacting Bose gas
Cited by in corpus (9)
- Analogue Gravity
- Relativistic Bose-Einstein Condensates: a new system for analogue models of gravity
- Coarse graining methods for spin net and spin foam models
- Conservative entropic forces
- The emergence of a universal limiting speed
- Breaking Diffeomorphism Invariance and Tests for the Emergence of Gravity
- Gravity as an emergent phenomenon: a GFT perspective
- Analog cosmology with spinor BECs
- Thermal Time and Kepler's Second Law