Entanglement in the linear-chain Heisenberg antiferromagnet Cu(C4H4N2)(NO3)2

Josep Batle; Ahmed Farouk; Majid Alkhambashi; Soliman Abdalla

doi:10.1140/epjb/e2017-80004-1

Entanglement in the linear-chain Heisenberg antiferromagnet Cu(C₄H₄N₂)(NO₃)₂

Josep Batle^*
, Ahmed Farouk
, Majid Alkhambashi
, Soliman Abdalla

^*Corresponding author for this work

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

10 Citations (Scopus)

Abstract

Quantum correlations are generally impossible to address directly in bulk systems. Quantum measures extended only to a few number of parties can be discussed in practice. In the present work we study a cluster of spins belonging to a compound 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 quantum correlations at nonzero temperatures. The critical point beyond which entanglement is zero is found at T_c = 15 K.

Original language	English
Article number	49
Journal	European Physical Journal B
Volume	90
Issue number	3
DOIs	https://doi.org/10.1140/epjb/e2017-80004-1
Publication status	Published - 1 Mar 2017
Externally published	Yes

Keywords

Mesoscopic and Nanoscale Systems

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10.1140/epjb/e2017-80004-1

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abstract = "Quantum correlations are generally impossible to address directly in bulk systems. Quantum measures extended only to a few number of parties can be discussed in practice. In the present work we study a cluster of spins belonging to a compound 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 quantum correlations at nonzero temperatures. The critical point beyond which entanglement is zero is found at Tc = 15 K.",

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AU - Farouk, Ahmed

AU - Alkhambashi, Majid

AU - Abdalla, Soliman

PY - 2017/3/1

Y1 - 2017/3/1

N2 - Quantum correlations are generally impossible to address directly in bulk systems. Quantum measures extended only to a few number of parties can be discussed in practice. In the present work we study a cluster of spins belonging to a compound 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 quantum correlations at nonzero temperatures. The critical point beyond which entanglement is zero is found at Tc = 15 K.

AB - Quantum correlations are generally impossible to address directly in bulk systems. Quantum measures extended only to a few number of parties can be discussed in practice. In the present work we study a cluster of spins belonging to a compound 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 quantum correlations at nonzero temperatures. The critical point beyond which entanglement is zero is found at Tc = 15 K.

KW - Mesoscopic and Nanoscale Systems

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ER -

Entanglement in the linear-chain Heisenberg antiferromagnet Cu(C₄H₄N₂)(NO₃)₂

Abstract

Keywords

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