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Article Dans Une Revue Physical Review D Année : 2017

Classical analogue of an interstellar travel through a hydrodynamic wormhole

Germain Rousseaux

Résumé

The classical theory of space-time, namely general relativity, suggests but does not demonstrate the existence of so-called wormholes allowing for interstellar journeys. Alternative proposals such as quantum gravity theories are developed nowadays to allow for wormhole travels by assuming hypothetical trans-Planckian effects at tiny scales. Here we show experimentally that analogue traversable and bidirectional wormholes exist in hydrodynamics following a suggestion by Wheeler. Using a water channel, we sent free surface waves on a countercurrent in an analogue gravity setup aiming at showing that hydrodynamic wormhole travels are controlled by a cascade of dispersive scales including surface tension effects: the capillary wavelength plays the role of a Planckian scale below which long gravity waves are transformed into short capillary waves that are able to move at speeds higher than the “flow” of space-time. Whereas our results do not apply to putative astrophysical wormholes per se, we anticipate that they will trigger new ideas to explore quantum gravity physics.
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Dates et versions

hal-01646016 , version 1 (23-11-2017)

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L.P. Euvé, Germain Rousseaux. Classical analogue of an interstellar travel through a hydrodynamic wormhole. Physical Review D, 2017, 96 (6), pp.064042. ⟨10.1103/PhysRevD.96.064042⟩. ⟨hal-01646016⟩
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