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arXiv · 1902.05928

Orbital angular momentum coupling in elastic photon-photon scattering

Ramy Aboushelbaya·Kevin Glize·Alexander F. Savin·Marko Mayr·Benjamin Spiers·Robin Wang·John Collier·Mattias Marklund·Raoul M. G. M Trines·Robert Bingham·Peter A. Norreys
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Abstract

In this letter, we investigate the effect of orbital angular momentum (OAM) on elastic photon-photon scattering in vacuum for the first time. We define exact solutions to the vacuum electro-magnetic wave equation which carry OAM. Using those, the expected coupling between three initialwaves is derived in the framework of an effective field theory based on the Euler-Heisenberg La-grangian and shows that OAM adds a signature to the generated photons thereby greatly improvingthe signal-to-noise ratio. This forms the basis for a proposed high-power laser experiment utilizingquantum optics techniques to filter the generated photons based on their OAM state

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Ramy Aboushelbaya, Kevin Glize, Alexander F. Savin, Marko Mayr, Benjamin Spiers, Robin Wang, John Collier, Mattias Marklund, Raoul M. G. M Trines, Robert Bingham, Peter A. Norreys. 2019-09-19. Orbital angular momentum coupling in elastic photon-photon scattering. https://doi.org/10.1103/physrevlett.123.113604

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