Nonlocality of cluster states of qubits

By Valerio Scarani, Antonio Acín, E. Schenck, Markus Aspelmeyer. 2004

152 citations recorded by the source corpus.

We investigate cluster states of qubits with respect to their nonlocal properties. We demonstrate that a Greenberger-Horne-Zeilinger (GHZ) argument holds for any cluster state: more precisely, it holds for any partial, thence mixed, state of a small number of connected qubits (five, in the case of one-dimensional lattices). In addition, we derive a Bell inequality that is maximally violated by the four-qubit cluster state and is not violated by the four-qubit GHZ state.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/cea586132ca0540ea96ae64bee7c4811b479eedb

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Artificial Intelligence

1. Otfried Gühne
2. Géza Tóth
3. Marcus Huber
4. Xiaoguang Wang
5. Nicolai Friis
6. Mehul Malik
7. Giuseppe Vitagliano

In Atomic and Molecular Physics, and Optics

1. Otfried Gühne
2. Géza Tóth
3. Marcus Huber
4. Xiaoguang Wang
5. Nicolai Friis
6. Mehul Malik
7. Giuseppe Vitagliano

Citations in the corpus

• Entanglement detection (2008, background): “In particular, for the four-qubit cluster state this inequality looks like [228,331]29”