Theoretical modeling shows circular supercurrents in semiconductor-superconductor LEDs generate OAM-entangled photon pairs by having radiative recombination inherit the superconducting order-parameter phase.
On-Chip Andreev Devices: Hard Superconducting Gap and Quantum Transport in Ballistic Nb –In0.75Ga0.25As-Quantum-Well–Nb Josephson Junctions
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Orbital-Angular-Momentum Entangled Photon Emission from Circular Currents in Semiconductor-Superconductor Structures
Theoretical modeling shows circular supercurrents in semiconductor-superconductor LEDs generate OAM-entangled photon pairs by having radiative recombination inherit the superconducting order-parameter phase.