Quantum information. Unconditional quantum teleportation between distant solid-state quantum bits
- PMID: 25082696
- DOI: 10.1126/science.1253512
Quantum information. Unconditional quantum teleportation between distant solid-state quantum bits
Abstract
Realizing robust quantum information transfer between long-lived qubit registers is a key challenge for quantum information science and technology. Here we demonstrate unconditional teleportation of arbitrary quantum states between diamond spin qubits separated by 3 meters. We prepare the teleporter through photon-mediated heralded entanglement between two distant electron spins and subsequently encode the source qubit in a single nuclear spin. By realizing a fully deterministic Bell-state measurement combined with real-time feed-forward, quantum teleportation is achieved upon each attempt with an average state fidelity exceeding the classical limit. These results establish diamond spin qubits as a prime candidate for the realization of quantum networks for quantum communication and network-based quantum computing.
Copyright © 2014, American Association for the Advancement of Science.
Comment in
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Quantum information. A gem of a quantum teleporter.Science. 2014 Aug 1;345(6196):510-1. doi: 10.1126/science.1256698. Epub 2014 Jul 31. Science. 2014. PMID: 25082683 No abstract available.
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