2024
DOI: 10.1038/s41586-024-07176-8
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Rotating curved spacetime signatures from a giant quantum vortex

Patrik Švančara,
Pietro Smaniotto,
Leonardo Solidoro
et al.

Abstract: Gravity simulators1 are laboratory systems in which small excitations such as sound2 or surface waves3,4 behave as fields propagating on a curved spacetime geometry. The analogy between gravity and fluids requires vanishing viscosity2–4, a feature naturally realized in superfluids such as liquid helium or cold atomic clouds5–8. Such systems have been successful in verifying key predictions of quantum field theory in curved spacetime7–11. In particular, quantum simulations of rotating curved spacetimes indicati… Show more

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Cited by 13 publications
(1 citation statement)
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“…Ultracold atoms systems as gravity simulators are accessible playing fields with controllable parameter spaces and have been successful in probing fundamental phenomena [14][15][16][17]. We show that long-wavelength perturbations on the surface of thin film superfluid helium-4, commonly referred to as third sound [18], obey an effective quantum field theory [19,20].…”
Section: Introductionmentioning
confidence: 94%
“…Ultracold atoms systems as gravity simulators are accessible playing fields with controllable parameter spaces and have been successful in probing fundamental phenomena [14][15][16][17]. We show that long-wavelength perturbations on the surface of thin film superfluid helium-4, commonly referred to as third sound [18], obey an effective quantum field theory [19,20].…”
Section: Introductionmentioning
confidence: 94%