Entanglement from superradiance and rotating quantum fluids of light
arXiv:2310.16031 · doi:10.1103/PhysRevD.109.105024
Abstract
The amplification of radiation by superradiance is a universal phenomenon observed in numerous physical systems. We demonstrate that superradiant scattering generates entanglement for different input states, including coherent states, thereby establishing the inherently quantum nature of this phenomenon. To put these concepts to the test, we propose a novel approach to create horizonless ergoregions, which are nonetheless dynamically stable thanks to the dissipative dynamics of a polaritonic fluid of light. We numerically simulate the system to demonstrate the creation of a stable ergoregion. Subsequently, we investigate rotational superradiance within this system, with a primary focus on entanglement generation and the possibilities for its enhancement using current techniques. Our methods permit the investigation of quantum emission by rotational superradiance in state-of-the-art experiments, in which the input state can be controlled at will.
Updated to match published version. 13 pages with 10 figures (main body of the article) + 11 pages (references + appendices with two extra figures and a table with numerical data)
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- Toward the Observation of Entangled Pairs in BEC analogue Expanding Universes
- Violation of Bell inequalities in an analogue black hole
- Cosmological particle production in a quantum field simulator as a quantum mechanical scattering problem
- On the origin of quasinormal modes in semi-open systems
- Quantifying two-mode entanglement of bosonic Gaussian states from their full counting statistics
- Stimulated Hawking effect and quasinormal mode resonance in a polariton simulator of field theory on curved spacetime
- Effects of superradiance on relativistic Foldy-Wouthuysen densities
- Analog Unruh effect of inhomogeneous one-dimensional Dirac fermions
- Impact of the Sagnac Effect on Thermodynamic and Magnetocaloric Properties of a Rotating Two-Dimensional Electron Gas
- Phonon Dynamics in Spherically-Curved Analog-Gravity Bose-Einstein Condensates
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