Multipartite non-locality and entanglement signatures of a field-induced quantum phase transition

被引：5

作者：

Batle, Josep ^{[1
]}

Alkhambashi, Majid ^{[2
]}

Farouk, Ahmed ^{[2
]}

Naseri, Mosayeb ^{[3
]}

Ghoranneviss, Mahmood ^{[4
]}

机构：

[1] Univ Illes Balears, Dept Fis, Palma De Mallorca 07122, Balearic Island, Spain

[2] Al Zahra Coll Women, Dept Informat Technol, POB 3365, Muscat, Oman

[3] Islamic Azad Univ, Kermanshah Branch, Dept Phys, Kermanshah, Iran

[4] Islamic Azad Univ, Sci & Res Branch, Plasma Phys Res Ctr, Tehran, Iran

来源：

EUROPEAN PHYSICAL JOURNAL B | 2017年 / 90卷 / 02期

关键词：

BELL INEQUALITY; SPIN CHAINS; STATES; VIOLATION;

D O I：

10.1140/epjb/e2017-70615-9

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Quantum correlation measures are limited in practice to a few number of parties, since no general theory is still capable of reaching the thermodynamic limit. In the present work we study entanglement and non-locality for a cluster of spins belonging to a compound that displays a magnetocaloric effect. A quantum phase transition (QPT) is induced by an external magnetic field B, in such a way that the corresponding quantum fluctuations are reproduced at a much smaller scale than the experimental outcomes, and then described by means of the aforementioned quantum measures.

引用

页数：7

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