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| HAL : insu-00679432, version 1 |
| DOI : 10.1121/1.3655020 |
| Fiche détaillée |  Récupérer au format |
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| Journal of the Acoustical Society of America 130, 4 (2011) 2514 |
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| Non-adiabatic geometric phase of elastic waves |
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| Jérémie Boulanger 1Nicolas Le Bihan 1 |
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| (2011) |
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| We study the transport of elastic waves in a waveguide with helical shape. Polarization exhibits a geometric phase (or Berry phase): The polarization plane rotates along the helix following a geometric rule called parallel transport. Whereas this experiment is similar to the first experimental evidence of a Berry phase, by Tomita and Chiao [Phys. Rev. Lett. 57 (1986)], there is a major difference: The evolution of polarization is not adiabatic. This experiment therefore addresses the universality of the geometric phase beyond the adiabatic regime. We show that properties of the observed geometric phase coincide with the ones predicted by the adiabatic theory. The measured value of the phase is consistent (up to experimental uncertainty) with the theoretical value and no dependency with frequency is observable either. |
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| 1 : | Grenoble Images Parole Signal Automatique (GIPSA-lab) |
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CNRS : UMR5216 – Université Joseph Fourier - Grenoble I – Université Pierre-Mendès-France - Grenoble II – Université Stendhal - Grenoble III – Institut Polytechnique de Grenoble - Grenoble Institute of Technology |
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| 2 : | Institut des sciences de la Terre (ISTerre) |
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CNRS : UMR5275 – IFSTTAR – Université de Savoie – Université Joseph Fourier - Grenoble I – INSU – OSUG – Institut de recherche pour le développement [IRD] : UR219 |
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| 3 : | Laboratoire de physique et modélisation des milieux condensés (LPMMC) |
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CNRS : UMR5493 – Université Joseph Fourier - Grenoble I |
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| CICS |
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| domaine | : | Planète et Univers/Sciences de la Terre/Géomorphologie |
| insu-00679432, version 1 | |
| http://hal-insu.archives-ouvertes.fr/insu-00679432 | |
| oai:hal-insu.archives-ouvertes.fr:insu-00679432 | |
| Contributeur : Pascale Talour | |
| Soumis le : Jeudi 15 Mars 2012, 16:03:27 | |
| Dernière modification le : Vendredi 24 Août 2012, 10:52:19 | |
