Skip navigation
Skip navigation

Spin and orbital angular momenta of acoustic beams

Bliokh, Konstantin; Nori, Franco

Description

We analyze spin and orbital angular momenta in monochromatic acoustic wave fields in a homogeneous medium. Despite being purely longitudinal (curl-free), inhomogeneous acoustic waves generically possess nonzero spin angular momentum density caused by the local rotation of the vector velocity field. We show that the integral spin of a localized acoustic wave vanishes in agreement with the spin-0 nature of longitudinal phonons. We also show that the helicity or chirality density vanishes...[Show more]

CollectionsANU Research Publications
Date published: 2019
Type: Journal article
URI: http://hdl.handle.net/1885/201689
Source: Physical Review B
DOI: 10.1103/PhysRevB.99.174310
Access Rights: Open Access

Download

File Description SizeFormat Image
01_Bliokh_Spin_and_orbital_angular_2019.pdf1.87 MBAdobe PDFThumbnail


Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  22 January 2019/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator