Work

Local Invariants and Pairwise Entanglement in Symmetric Multiqubit System

Year: 2006

Type: article

Abstract: Pairwise entanglement properties of a symmetric multi-qubit system are analyzed through a complete set of two-qubit local invariants. Collective features of entanglement, such as spin squeezing, are expressed in terms of invariants and a classification scheme for pairwise entanglement is proposed. The invariant criteria given here are shown to be related to the recently proposed (Phys. Rev. Lett.95, 120502 (2005)) generalized spin squeezing inequalities for pairwise entanglement in symmetric multi-qubit states.

Source: International Journal of Modern Physics B

DOI: 10.1142/s0217979206034406

Authors: A. R. USHA DEVI, M. S. UMA, R. PRABHU, SUDHA

Institution: Bangalore University

Language: English

Topic: Quantum Information and Cryptography

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2024228219

FWCI: 0.933

Cites: 35

Cited by: 18

Related to: 10