Multipartite nonlocality in the presence of particle-number super-selection rules
arXiv:1108.1436
Abstract
Super-selection rules severely restrict the possible operations one can perform on an entangled state. Their effect on the observation of non-locality through the Bell inequalities is only partially understood in the bipartite case. In this article we examine a range of multipartite entangled states and find that for those states the super-selection rules limit the genuinely multipartite nonlocality but not the non-genuinely multipartite. We argue that when the number of particles is smaller than the number of parties, genuinely multipartite nonlocality cannot be detected unless the super-selection rules can be relaxed. The tests proposed in the paper can be implemented using routinely used experimental techniques.
arXiv comment1 figure
References in corpus (17)
- Photonic quantum technologies
- Reference frames, superselection rules, and quantum information
- Bell's theorem for general N-qubit states
- The entanglement of indistinguishable particles shared between two parties
- Multimode quantum interference of photons in multiport integrated devices
- |0>|1>+|1>|0>
- Detecting genuine multipartite quantum non-locality -- a simple approach and generalization to arbitrary dimension
- Homodyne tomography characterization and nonlocality of a dual-mode optical qubit
- Multipartite entanglement detection in bosons
- Local and Global Distinguishability in Quantum Interferometry
- Classical simulation of quantum entanglement without local hidden variables
- Natural Entanglement in Bose-Einstein Condensates
- Nonlocal effects in Fock space
- Nonlocal Aspects of a Quantum Wave
- Natural mode entanglement as a resource for quantum communication
- Detection and characterization of multipartite entanglement in optical lattices
- Multi-Partite Entanglement Inequalities via Spin Vector Geometry