Quantum information approach to the azurite mineral frustrated quantum magnet

Batle, J. and Raymond Ooi, C.H. and Abutalib, M. and Farouk, A. and Abdalla, S. (2016) Quantum information approach to the azurite mineral frustrated quantum magnet. Quantum Information Processing, 15 (7). pp. 2839-2850. ISSN 1570-0755

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Official URL: http://dx.doi.org/10.1007/s11128-016-1317-9

Abstract

Quantum correlations are almost impossible to address in bulk systems. Quantum measures extended only to a few number of parties can be discussed in practice. In the present work, we study nonlocality for a cluster of spins belonging to a mineral whose structure is that of a quantum magnet. We reproduce at a much smaller scale the experimental outcomes, and then, we study the role of quantum correlations there. A macroscopic entanglement witness has been introduced in order to reveal nonlocal quantum correlations between individual constituents of the azurite mineral at nonzero temperatures. The critical point beyond which entanglement is zero is found at Tc<1K.

Item Type: Article
Uncontrolled Keywords: Nonlocality; Quantum phase transition; Quantum magnet
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Divisions: Faculty of Science > Dept of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 07 Dec 2017 04:07
Last Modified: 07 Dec 2017 04:07
URI: http://eprints.um.edu.my/id/eprint/18483

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