Entanglement distillation is the process of extracting a smaller number of highly entangled pairs of quantum bits (qubits) from a larger number of less entangled pairs. This technique is crucial in quantum information theory, as it enables the enhancement of entanglement quality, which is essential for tasks such as quantum teleportation and quantum cryptography. By increasing the purity of entangled states, it addresses the challenges posed by noise and decoherence in quantum systems.
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