Quantum entanglement in a many-body system exhibiting multiple quantum phase transitions

Zander, Claudia; Plastino, Angel Ricardo (Angelo)

dc.contributor.author	Zander, Claudia
dc.contributor.author	Plastino, Angel Ricardo (Angelo)
dc.date.accessioned	2010-07-26T06:36:44Z
dc.date.available	2010-07-26T06:36:44Z
dc.date.issued	2009-08
dc.description.abstract	We investigate the quantum entanglement-related features of the many-body model of Plastino and Moszkowski [N. Cimento 47 (1978) 470]. This is an exactly solvable N-body, SU2 two-level model exhibiting several quantum phase transitions. We show that these transitions happen to be also entanglement-transitions associated with different many-body Dicke states. The main properties of the model considered here make it particularly well suited to study, by recourse to exact analytical computations, some connections between quantum phase transitions and quantum entanglement-theory.	en
dc.identifier.citation	Zander, C, Plastino, A & Plastino, AR 2009, 'Quantum entanglement in a many-body system exhibiting multiple quantum phase transitions', Brazilian Journal of Physics, vol. 39, no. 2A, pp. 464-467. [http://www.sbfisica.org.br/bjp/]	en
dc.identifier.issn	0103-9733
dc.identifier.uri	http://hdl.handle.net/2263/14542
dc.language.iso	en	en_US
dc.publisher	Sociedade Brasileira de Fisica	en_US
dc.rights	Sociedade Brasileira de Fisica	en_US
dc.subject	Quantum phase transitions	en
dc.subject.lcsh	Many-body problem	en
dc.subject.lcsh	Quantum theory	en
dc.subject.lcsh	Phase transformations (Statistical physics)	en
dc.title	Quantum entanglement in a many-body system exhibiting multiple quantum phase transitions	en
dc.type	Article	en