Orbital angular momentum from marginals of quadrature distributions

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

doi:10.1103/PhysRevA.88.053839

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Orbital angular momentum from marginals of quadrature distributions

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Sanchez-Soto, L. L.
Guests, Max Planck Institute for the Science of Light, Max Planck Society;

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Leuchs, G.
Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Sanchez-Soto, L. L., Klimov, A. B., de la Hoz, P., Rigas, I., Rehacek, J., Hradil, Z., et al. (2013). Orbital angular momentum from marginals of quadrature distributions. PHYSICAL REVIEW A, 88(5): 053839. doi:10.1103/PhysRevA.88.053839.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-66E9-7

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 this with previous approaches and show how this method works in some relevant examples.