Entanglement protection of high-dimensional states by adaptive optics
arXiv:1810.04044 · doi:10.1088/1367-2630/ab006e
Abstract
We study the potential of adaptive optics (AO) to protect entanglement of high-dimensional photonic orbital-angular-momentum (OAM) states against turbulence-induced phase distortions. We demonstrate that AO is able to reduce crosstalk among the OAM modes and, consequently, the entanglement decay as well as photon losses. A test of the AO-stabilized output state against high-dimensional Bell inequalities shows that the transmitted entanglement allows for secure communication, even in the strong scintillation regime.
arXiv comment20 pages, 6 figures
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