Better Entanglement Witness for Genuine Multipartite Entanglement

Koji Nagata; Tadao Nakamura; Josep Batle; Soliman Abdalla; Ahmed Farouk

doi:10.1007/s10773-018-3735-1

Better Entanglement Witness for Genuine Multipartite Entanglement

Koji Nagata^*
, Tadao Nakamura
, Josep Batle
, Soliman Abdalla
, Ahmed Farouk

^*Corresponding author for this work

Korea Advanced Institute of Science and Technology
Keio University
University of the Balearic Islands
Faculty of Sciences, King Abdulaziz University
Wilfrid Laurier University

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

In the short contribution, we consider inequalities of confirming genuine multipartite entanglement. We have a better entanglement witness for a particular mixed state to test genuine multipartite entanglement. Our physical situation is that we measure Pauli observables σ_x, σ_y, and σ_z per side. If the reduction factor is greater than 0.4, then we can confirm the measured quantum state is genuine multipartite entangled experimentally.

Original language	English
Pages (from-to)	2116-2120
Number of pages	5
Journal	International Journal of Theoretical Physics
Volume	57
Issue number	7
DOIs	https://doi.org/10.1007/s10773-018-3735-1
Publication status	Published - 1 Jul 2018
Externally published	Yes

Keywords

Formalism
Quantum entanglement
Quantum non locality

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10.1007/s10773-018-3735-1

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abstract = "In the short contribution, we consider inequalities of confirming genuine multipartite entanglement. We have a better entanglement witness for a particular mixed state to test genuine multipartite entanglement. Our physical situation is that we measure Pauli observables σx, σy, and σz per side. If the reduction factor is greater than 0.4, then we can confirm the measured quantum state is genuine multipartite entangled experimentally.",

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AU - Batle, Josep

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AU - Farouk, Ahmed

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N2 - In the short contribution, we consider inequalities of confirming genuine multipartite entanglement. We have a better entanglement witness for a particular mixed state to test genuine multipartite entanglement. Our physical situation is that we measure Pauli observables σx, σy, and σz per side. If the reduction factor is greater than 0.4, then we can confirm the measured quantum state is genuine multipartite entangled experimentally.

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KW - Formalism

KW - Quantum entanglement

KW - Quantum non locality

UR - https://www.scopus.com/pages/publications/85044482249

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Better Entanglement Witness for Genuine Multipartite Entanglement

Abstract

Keywords

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