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Free keywords:
ORBITAL ANGULAR-MOMENTUM; BELL INEQUALITY; CRYSTAL FIBER; MODES;
VIOLATION; STATES; TIMEPhysics;
Abstract:
Entanglement in the spatial degrees of freedom of photons is an interesting resource for quantum information. For practical distribution of such entangled photons, it is desirable to use an optical fiber, which in this case has to support multiple transverse modes. Here we report the use of a hollow-core photonic crystal fiber to transport spatially entangled qubits.
