Robust Creation of Entanglement between Ions in Spatially Separate Cavities

2003/02/28 by Dan E. Browne, D. E. Browne, Martin B. Plenio +3 · 14 citations
Computer Science · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Quantum Information and Cryptography #Quantum Mechanics and Applications #quant-ph

paper · pdf · doi:10.1103/physrevlett.91.067901

published as Phys. Rev. Lett. 91, 067901 (2003) · 5 pages, 3 figures

openalex publication_date 2003/08/04 · arxiv created 2003/08/05 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

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 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.

Citations

• Creation of entangled states of distant atoms by interference

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