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Measurement of stimulated Hawking emission in an analogue system.
- S. Weinfurtner, E. Tedford, M. Penrice, W. Unruh, G. Lawrence
- Physics, Medicine
- Physical review letters
- 11 August 2010
The analogy between the propagation of fields around black holes and surface waves on moving water and the measured amplitudes of the converted waves demonstrate the thermal nature of the conversion process for this system attest to the generality of the Hawking process. Expand
Quantum gravity without Lorentz invariance
There has been a significant surge of interest in Hoyrava's model for 3+1 dimensional quantum gravity, this model being based on anisotropic scaling at a z = 3 Lifshitz point. Hoyrava's model, and… Expand
Phenomenologically viable Lorentz-violating quantum gravity.
An extension of Horava's model that abandons "detailed balance" and regains parity invariance, and in 3+1 dimensions exhibit all five marginal and four relevant operators, as determined by power counting. Expand
From dispersion relations to spectral dimension - and back again
The so-called spectral dimension is a scale-dependent number associated with both geometries and field theories that has recently attracted much attention, driven largely though not exclusively by… Expand
Analogue model for an expanding universe
- S. Weinfurtner
- 14 April 2004
Over the last few years numerous papers concerning analogue models of (and for) gravity have been published. It has been shown that the dynamical equations for several condensed matter systems,… Expand
Spectral dimension as a probe of the ultraviolet continuum regime of causal dynamical triangulations.
It is shown that, in 2 + 1 dimensions, Hořava-Lifshitz gravity can mimic the flow of the spectral dimension in causal dynamical triangulations to high accuracy and over a wide range of scales. Expand
Observation of superradiance in a vortex flow
- T. Torres, Sam Patrick, Antonin Coutant, M. Richartz, E. Tedford, S. Weinfurtner
- 19 December 2016
School of Mathematical Sciences, University of Nottingham, University Park, Nottingham, NG7 2RD, UK Centro de Matemática, Computação e Cognição, Universidade Federal do ABC (UFABC), 09210170 Santo… Expand
Rotational superradiant scattering in a vortex flow
When an incident wave scatters off of an obstacle, it is partially reflected and partially transmitted. In theory, if the obstacle is rotating, waves can be amplified in the process, extracting… Expand
Analog model of a Friedmann-Robertson-Walker universe in Bose-Einstein condensates: Application of the classical field method
Analog models of gravity have been motivated by the possibility of investigating phenomena not readily accessible in their cosmological counterparts. In this paper, we investigate the analog of… Expand
Classical Aspects of Hawking Radiation Verified in Analogue Gravity Experiment
There is an analogy between the propagation of fields on a curved spacetime and shallow water waves in an open channel flow. By placing a streamlined obstacle into an open channel flow we create a… Expand