Berry effect in acoustical polarization transport in phononic crystals

Details Berry effect in acoustical polarization transport in phononic crystals Berry effect in acoustical polarization transport in phononic crystals

2008-10-28

arxiv.org/abs/0810.4992v1

JETP Lett. 88 (2008) 590

Physics

Condensed Matter

Other Condensed Matter

To appear in JETP Lett

Scientific paper

We derive the semiclassical equations of motion of a transverse acoustical wave packet propagating in a phononic crystal subject to slowly varying perturbations. The formalism gives rise to Berry effect terms in the equations of motion, manifested as the Rytov polarization rotation law and the polarization-dependent Hall effect. We show that the formalism is also applicable to the case of non-periodic inhomogeneous media, yielding explicit expressions for the Berry effect terms.

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