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Analog model for quantum gravity effects: phonons in random fluids.

G Krein1, G Menezes, N F Svaiter

  • 1Instituto de Física Teórica, Universidade Estadual Paulista, São Paulo, SP, Brazil. gkrein@ift.unesp.br

Physical Review Letters
|January 15, 2011
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Summary
This summary is machine-generated.

This study introduces an analog model for quantum gravity using condensed matter physics. It demonstrates how random fluctuations transform a free phonon system into a self-interacting quantum field theory.

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Area of Science:

  • Condensed matter physics
  • Quantum gravity analogs

Background:

  • Phonons are quantized lattice vibrations.
  • Quantum gravity describes gravity at quantum scales.

Purpose of the Study:

  • To develop an analog model for quantum gravity effects.
  • To investigate phonon behavior in a randomly fluctuating medium.

Main Methods:

  • Modeling phonons in a fluid with random velocity.
  • Introducing random fluctuations in bulk modulus.
  • Analyzing systems with Gaussian colored noise.

Main Results:

  • A free scalar quantum field theory for phonons emerges.
  • Random averaging transforms the free theory into a self-interacting model.

Conclusions:

  • Analog models in condensed matter can mimic quantum gravity phenomena.
  • Systematic fluctuations can induce self-interactions in quantum field theories.