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An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
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Polariton fluids for analogue gravity physics.

M J Jacquet1, T Boulier1, F Claude1

  • 1Sorbonne Université, CNRS, ENS-Université PSL, Collège de France, Laboratoire Kastler Brossel, Paris 75005, France.

Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
|July 21, 2020
PubMed
Summary
This summary is machine-generated.

Scientists created laboratory analogue gravity using polariton fluids. This breakthrough allows studying phenomena like Hawking radiation in a controlled fluid environment, opening new avenues for fundamental physics research.

Keywords:
analogue gravityblack holespolaritonsquantum fluids of light

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Area of Science:

  • Condensed matter physics
  • Analogue gravity
  • Quantum fluids

Background:

  • Analogue gravity simulates black hole physics in laboratory settings.
  • Previous experiments observed amplification phenomena at event horizons and ergoregions.

Purpose of the Study:

  • To demonstrate a novel method for creating analogue gravity systems.
  • To investigate the generation of transsonic fluid flows and horizons in a controllable manner.
  • To explore the potential for observing quantum amplification effects in fluids.

Main Methods:

  • Optically generating a defect in a polariton microcavity.
  • Creating one- and two-dimensional transsonic fluid flows.
  • Implementing a rotating geometry mimicking a bathtub vortex.

Main Results:

  • Successful creation of tuneable horizons in polariton fluids.
  • Demonstration of transsonic fluid flows.
  • Establishment of a rotating analogue system.

Conclusions:

  • Optically generated defects in polariton microcavities provide a versatile platform for analogue gravity.
  • These experiments pave the way for observing stimulated and spontaneous amplification effects (Hawking, Penrose, Zel'dovich) in fluids of light.