Solid-State Circuit for Spin Entanglement Generation and Purification
- 15 June 2005
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 94 (23) , 236803
- https://doi.org/10.1103/physrevlett.94.236803
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.Keywords
All Related Versions
This publication has 17 references indexed in Scilit:
- Optical Pumping of the Electronic and Nuclear Spin of Single Charge-Tunable Quantum DotsPhysical Review Letters, 2005
- Manipulation and detection of single electrons for future information processingJournal of Applied Physics, 2005
- Phonon-Induced Decay of the Electron Spin in Quantum DotsPhysical Review Letters, 2004
- Zeeman Energy and Spin Relaxation in a One-Electron Quantum DotPhysical Review Letters, 2003
- Architecture for a large-scale ion-trap quantum computerNature, 2002
- Demonstrating the viability of universal quantum computation using teleportation and single-qubit operationsNature, 1999
- Quantum Repeaters: The Role of Imperfect Local Operations in Quantum CommunicationPhysical Review Letters, 1998
- Quantum Privacy Amplification and the Security of Quantum Cryptography over Noisy ChannelsPhysical Review Letters, 1996
- Purification of Noisy Entanglement and Faithful Teleportation via Noisy ChannelsPhysical Review Letters, 1996
- Experimental Test of Bell's Inequalities Using Time- Varying AnalyzersPhysical Review Letters, 1982