Entanglement bound for multipartite pure states based on local measurements

Journal Article · Sat Oct 15 00:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.84.042308· OSTI ID:22080348

Lizhen, Jiang; Xiaoyu, Chen; Tianyu, Ye ^[1]

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1. College of Information and Electronic Engineering, Zhejiang Gongshang University, Hangzhou, 310018 (China)

An entanglement bound based on local measurements is introduced for multipartite pure states. It is the upper bound of the geometric measure and the relative entropy of entanglement. It is the lower bound of the minimal-measurement entropy. For pure bipartite states, the bound is equal to the entanglement entropy. The bound is applied to pure tripartite qubit states and the exact tripartite relative entropy of entanglement is obtained for a wide class of states.

• OSTI ID: 22080348
• Journal Information: Physical Review. A, Vol. 84, Issue 4; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ENTROPY
PURE STATES
QUANTUM ENTANGLEMENT
QUBITS