Measurement of Optical Orbital and Spin Angular Momentum: Implications for Photon Angular Momentum

Autor:	Leader, Elliot
Rok vydání:	2017
Předmět:	Physics - Optics High Energy Physics - Phenomenology High Energy Physics - Theory
Druh dokumentu:	Working Paper
DOI:	10.1016/j.physletb.2018.02.029
Popis:	The expression for the total angular momentum carried by a laser optical vortex beam, splits, in the paraxial approximation, into two terms which seem to represent orbital and spin angular momentum respectively. There are, however, two very different competing versions of the formula for the spin angular momentum, one based on the use of the Poynting vector, as in classical electrodynamics, the other related to the canonical expression for the angular momentum which occurs in Quantum Electrodynamic. I analyze the possibility that a sufficiently sensitive optical measurement could decide which of these corresponds to the actual physical angular momentum carried by the beam. Comment: 4 pages, 1 figure
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1710.03099 Zobrazit plný text záznamu View this record from Arxiv