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arXiv · 1312.5433

Orbital angular momentum from marginals of quadrature distributions

L. L. Sanchez-Soto·A. B. Klimov·P. de la Hoz·I. Rigas·J. Rehacek·Z. Hradil·G. Leuchs
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Abstract

We set forth a method to analyze the orbital angular momentum of a light field. Instead of using the canonical formalism for the conjugate pair angle-angular momentum, we model this latter variable by the superposition of two independent harmonic oscillators along two orthogonal axes. By describing each oscillator by a standard Wigner function, we derive, via a consistent change of variables, a comprehensive picture of the orbital angular momentum. We compare with previous approaches and show how this method works in some relevant examples.

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L. L. Sanchez-Soto, A. B. Klimov, P. de la Hoz, I. Rigas, J. Rehacek, Z. Hradil, G. Leuchs. 2013-12-19. Orbital angular momentum from marginals of quadrature distributions. https://doi.org/10.1103/physreva.88.053839

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