Universal quantum computation with the Orbital Angular Momentum of a single photon

Abstract

We prove that a single photon with quantum data encoded in its orbital angular momentum can be manipulated with simple optical elements to provide any desired quantum computation. We will show how to build any quantum unitary operator using beamsplitters, phase shifters, holograms and an extraction gate based on quantum interrogation. The advantages and challenges of these approach are then discussed, in particular the problem of the readout of the results.

First version. Comments welcome

References in corpus (5)

• Entanglement of Orbital Angular Momentum States of Photons
• Management of the Angular Momentum of Light: Preparation of Photons in Multidimensional Vector States of Angular
• Quantum Multiplexing with the Orbital Angular Momentum of light
• Quantum computer networks with the orbital angular momentum of light
• Quantum Interrogation with particles

Cited by in corpus (13)

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• Optical vortex torque measured with optically trapped microbarbells
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• Two-photon bunching inside a quantum memory cell
• Polarization selective Dove prism
• N-qubit universal quantum logic with a photonic qudit and O(N) linear optics elements
• On `orbital' and `spin' angular momentum of light in classical and quantum theories -- a general framework
• Arbitrary unitaries in orbital angular momentum of single photons
• Photonic quantum information with time-bins: Principles and applications
• Angular-momentum-selective nanofocusing with Weyl semimetals