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"Cosmological" quasiparticle production in harmonically trapped superfluid gases

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arxiv cond-mat/0303063 v3 pith:IMOCEPM4 submitted 2003-03-04 cond-mat.other gr-qc

Petr O. Fedichev , Uwe R. Fischer This is my paper · ORCID
classification cond-mat.othergr-qc
keywords productionquasiparticlesuperfluidcosmologicaleffectivegasesharmonicallyspace-times
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We show that a variety of cosmologically motivated effective quasiparticle space-times can be produced in harmonically trapped superfluid Bose and Fermi gases. We study the analogue of cosmological particle production in these effective space-times, induced by trapping potentials and coupling constants possessing an arbitrary time dependence. The WKB probabilities for phonon creation from the superfluid vacuum are calculated, and an experimental procedure to detect quasiparticle production by measuring density-density correlation functions is proposed.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Quantum dynamics of cosmological particle production: interacting quantum field theories with matrix product states

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    Self-interactions in scalar and gauge theories suppress gravitational particle production in a quench modeling cosmic expansion, as computed with tensor networks.

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    Derives shadow width, redshift asymmetry, and flux observables for the Lorentz-violating draining-bathtub acoustic black hole, showing how each observable isolates different combinations of the rotation and violation ...

  3. Simulating Hawking radiation in quantum many-body systems: deviations from the thermal spectrum

    gr-qc 2025-02 conditional novelty 5.0 of 10

    A bosonic hopping model that emulates quantum fields in curved spacetime is shown to reproduce the non-thermal E^2 corrections to Hawking radiation predicted by the tunneling method.

  4. Analogue gravity with Bose-Einstein condensates

    gr-qc 2025-12 conditional novelty 2.0 of 10

    Phonons in a Bose–Einstein condensate behave as a massless scalar field on an acoustic spacetime; these notes derive that mapping in detail and apply it to superradiance and analogue Hawking radiation.

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