Efficient Multiparticle Entanglement via Asymmetric Rydberg Blockade
- 17 June 2009
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 102 (24), 240502
- https://doi.org/10.1103/physrevlett.102.240502
Abstract
We present an efficient method for producing particle entangled states using Rydberg blockade interactions. Optical excitation of Rydberg states that interact weakly, yet have a strong coupling to a second control state is used to achieve state dependent qubit rotations in small ensembles. On the basis of quantitative calculations, we predict that an entangled quantum superposition state of eight atoms can be produced with a fidelity of 84% in cold Rb atoms.
Keywords
This publication has 25 references indexed in Scilit:
- Erratum: Atom Counting Statistics in Ensembles of Interacting Rydberg Atoms [Phys. Rev. Lett.95, 253002 (2005)]Physical Review Letters, 2007
- Dipole Blockade at Förster Resonances in High Resolution Laser Excitation of Rydberg States of Cesium AtomsPhysical Review Letters, 2006
- Atom Counting Statistics in Ensembles of Interacting Rydberg AtomsPhysical Review Letters, 2005
- Scalable multiparticle entanglement of trapped ionsNature, 2005
- Creation of a six-atom ‘Schrödinger cat’ stateNature, 2005
- Suppression of Excitation and Spectral Broadening Induced by Interactions in a Cold Gas of Rydberg AtomsPhysical Review Letters, 2004
- Local Blockade of Rydberg Excitation in an Ultracold GasPhysical Review Letters, 2004
- Experimental long-lived entanglement of two macroscopic objectsNature, 2001
- Dipole Blockade and Quantum Information Processing in Mesoscopic Atomic EnsemblesPhysical Review Letters, 2001
- Fast Quantum Gates for Neutral AtomsPhysical Review Letters, 2000