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

Zander, Claudia; Plastino, A.; Plastino, A.

doi:10.1590/s0103-97332009000400022

Cited by 2 publications

(3 citation statements)

References 7 publications

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“…A phase transition was detected in the Werner state undergoing QSS, characterizing a system symmetry break between separable and entangled versions of the Werner state. This entanglement close relation with quantum phase transitions have already been studied in finite-dimensional case [13] and infinite-dimensional also [14,15]. And in all of these works conclusions drawn state that entanglement indicates quantum phase transitions in general [15].…”

Section: Entanglementsupporting

confidence: 52%

Quantum Entanglement Phase Transition in Werner State

Campbell,

Piqueira

2011

Preprint

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An extension to computational mechanics complexity measure is proposed in order to tackle quantum states complexity quantification. The method is applicable to any n−partite state of qudits through some simple modifications. A Werner state was considered to test this approach.The results show that it undergoes a phase transition between entangled and separable versions of itself. Also, results suggest interplay between quantum state complexity robustness rise and entanglement. Finally, only via symbolic dynamics statistical analysis, the proposed method was able to distinguish separable and entangled dynamical structural differences.

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Section: Entanglementsupporting

confidence: 52%

Quantum Entanglement Phase Transition in Werner State

Campbell,

Piqueira

2011

Preprint

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“…We apply here our thermal quantifiers S , D , and C to a fermion model system used in nuclear physics [ 16 , 17 , 18 , 19 , 20 ].…”

Section: Application To a Nuclear Physics Modelmentioning

confidence: 99%

“…The above thermal quantifiers will be applied below to a nuclear physics model that has attracted attention [ 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

Structural Statistical Quantifiers and Thermal Features of Quantum Systems

Pennini

Plastino

et al. 2020

Entropy

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This paper deals primarily with relatively novel thermal quantifiers called disequilibrium and statistical complexity, whose role is growing in different disciplines of physics and other sciences. These quantifiers are called L. Ruiz, Mancini, and Calvet (LMC) quantifiers, following the initials of the three authors who advanced them. We wish to establish information-theoretical bridges between LMC structural quantifiers and (1) Thermal Heisenberg uncertainties ΔxΔp (at temperature T); (2) A nuclear physics fermion model. Having achieved such purposes, we determine to what an extent our bridges can be extended to both the semi-classical and classical realms. In addition, we find a strict bound relating a special LMC structural quantifier to quantum uncertainties.

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

Cited by 2 publications

References 7 publications

Quantum Entanglement Phase Transition in Werner State

Quantum Entanglement Phase Transition in Werner State

Structural Statistical Quantifiers and Thermal Features of Quantum Systems

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