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Robust creation of entanglement between ions in spatially separate cavities

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arxiv quant-ph/0302185 v4 pith:JHPAXVU2 submitted 2003-02-25 quant-ph

D.E. Browne , M.B. Plenio , S.F. Huelga This is my paper · ORCID
classification quant-ph
keywords atomscavitiesdetectorsentanglementrobustschemeseparatespatially
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We present a protocol that allows the generation of a maximally entangled state between individual atoms held in spatially separate cavities. Assuming perfect detectors and neglecting spontaneous emission from the atoms, the resulting idealized scheme is deterministic. Under more realistic conditions, when the the atom-cavity interaction departs from the strong coupling regime, and considering imperfect detectors, we show that the scheme is robust against experimental inefficiencies and yields probabilistic entanglement of very high fidelity.

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  1. Microscopic QED origin of spin entanglement

    quant-ph 2026-08 reject novelty 3.0 of 10

    Starting from QED scattering, the paper derives dipolar spin interactions for two qubits and claims a distance-to-the-fourth-power effective interaction between two bath spins mediated by a virtual fermion.

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