Quantum communication with quantum dot spins
- 9 February 2007
- journal article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 75 (8)
- https://doi.org/10.1103/physrevb.75.081302
Abstract
Single electron spins in quantum dots are attractive for quantum communication because of their expected long coherence times. We propose a method to create entanglement between two remote spins based on the coincident detection of two photons emitted by the dots. Local nodes of several qubits can be realized using the dipole-dipole interaction between trions in neighboring dots and spectral addressing, allowing the realization of quantum repeater protocols. We have performed a detailed feasibility study of our proposal based on tight-binding calculations of quantum dot properties.Comment: 4 pages, 2 figures, new and improved version, explicit performance estimateKeywords
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