Publication: Solid-State Circuit for Spin Entanglement Generation and Purification
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Date
2005
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American Physical Society
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Taylor, J. M., W. Dür, P. Zoller, A. Yacoby, C. M. Marcus, and M. D. Lukin. 2005. “Solid-State Circuit for Spin Entanglement Generation and Purification.” Physical Review Letters 94 (23). https://doi.org/10.1103/physrevlett.94.236803.
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Abstract
We show how realistic charge manipulation and measurement techniques, combined with the exchange interaction, allow for the robust generation and purification of four-particle spin entangled states in electrically controlled semiconductor quantum dots. The generated states are immunized to the dominant sources of noise via a dynamical decoherence-free subspace; all additional errors are corrected by a purification protocol. This approach may find application in quantum computation, communication, and metrology.
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