Abstract
Cluster states serve as the central physical resource for one-way quantum computing. We here present an experimental demonstration of the efficient cluster-state construction scheme proposed by Browne and Rudolph. In our experiment, three-photon cluster states with high purity are created from two Bell states via a qubit “fusion” operation, showing a strong violation of a three-particle Mermin inequality of . In addition, the entanglement properties of the cluster states are examined under and measurements on a qubit. This scheme could be extended to any desired number of qubits and represents an essential step for the optical one-way quantum computation.
- Received 9 January 2005
DOI:https://doi.org/10.1103/PhysRevA.73.022330
©2006 American Physical Society