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"Quantum information was born from the merging of information science and quantum physics. Its main objective consists of harnessing the quantum nature of information and learning how to process it by using physical systems operating according quantum mechanics laws. Being supported by numerous proofs-of-principle, the field is now ready to proceed to move to the next level of applications, where ...

Description  Orbital angular momentum (OAM) is a degree of freedom of light associated with rotationally structured transverse spatial modes of light beams, as in helical wave-front beams. In many respects OAM is analogous to polarization, but in contrast to polarization it is defined in an unbounded infinite-dimensional space. This may allo ...