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Quantum simulation of cosmic inflation in two-component Bose-Einstein condensates

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arxiv cond-mat/0406470 v2 pith:K4YZ3ABI submitted 2004-06-21 cond-mat.other gr-qcquant-ph

Uwe R. Fischer , Ralf Schützhold This is my paper · ORCID
classification cond-mat.othergr-qcquant-ph
keywords quantumtwo-componentadvantagesbose-einsteincasecondensatesinflationone-component
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Generalizing the one-component case, we demonstrate that the propagation of sound waves in two-component Bose-Einstein condensates can also be described in terms of effective sonic geometries under appropriate conditions. In comparison with the one-component case, the two-component setup offers more flexibility and several advantages. In view of these advantages, we propose an experiment in which the evolution of the inflaton field, and thereby the generation of density quantum fluctuations in the very early stages of our universe during inflation, can be simulated, realizing a {\em quantum simulation via analogue gravity models}.

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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. Shadow, acoustic redshift, and transfer observables of Lorentz-violating rotating acoustic black holes

    gr-qc 2026-05 unverdicted novelty 5.0 of 10

    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 ...

  2. 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.

  3. Island of acoustic black hole in Schwarzschild spacetime

    hep-th 2025-12 conditional novelty 4.0 of 10

    For a Schwarzschild-surrounded acoustic black hole, phonon entanglement entropy follows a Page curve in the non-extremal case but diverges (no Page time) in the extremal case, according to the island formula.

  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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