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2015
Journal Article
Titel
Universal entanglement decay of photonic-orbital-angular-momentum qubit states in atmospheric turbulence
Abstract
We consider the propagation of two photonic qubits, initially maximally entangled in their orbital angular momenta (OAM), across a weakly turbulent atmosphere. By introducing the phase correlation length of an OAM beam, we show that the photonic entanglement exhibits a universal exponential decay.