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A review of entangled photon pair sources based on three-wave mixing in bulk crystals

Entangled photon-pairs are a vital resource in quantum information protocols ranging from quantum key distribution to teleportation. The commonly used technique for generating photon-pairs is by a three-wave mixing process called spontaneous parametric down-conversion (SPDC) in bulk crystals. The increased demand of quality entangled photon-pair sources for various applications and the readily available technology to...

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