A Quantum Field Theory Twist to Photon Angular Momentum
Quantum Physics
2007-05-23 v1
Abstract
A quantum field theory approach is put forward to generalize the concept of classical spatial light beams carrying orbital angular momentum to the single-photon level. This quantization framework is carried out both in the paraxial and nonparaxial regimes. Upon extension to the optical phase space, closed-form expressions are found for a photon Wigner representation describing transformations on the orbital Poincare sphere of unitarily related families of paraxial spatial modes.
Cite
@article{arxiv.quant-ph/0509040,
title = {A Quantum Field Theory Twist to Photon Angular Momentum},
author = {G. F. Calvo and A. Picon and E. Bagan},
journal= {arXiv preprint arXiv:quant-ph/0509040},
year = {2007}
}
Comments
10 pages, 1 figure