|Solid-state circuit for spin entanglement generation and purification
|Year of Publication
|Taylor, JM, Dür, W, Zoller, P, Yacoby, A, Marcus, CM, Lukin, MD
|Physical Review Letters
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.
|Phys. Rev. Lett.