Solid-state circuit for spin entanglement generation and purification

TitleSolid-state circuit for spin entanglement generation and purification
Publication TypeJournal Article
Year of Publication2005
AuthorsTaylor, JM, Dür, W, Zoller, P, Yacoby, A, Marcus, CM, Lukin, MD
JournalPhysical Review Letters
Date Published2005/6/15

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.

Short TitlePhys. Rev. Lett.