Thermal entanglement in the nanotubular system Na2 V3 O7

T. Vértesi, E. Bene

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

Macroscopic entanglement witnesses have been put forward recently to reveal nonlocal quantum correlations between individual constituents of the solid at nonzero temperatures. Here we apply a recently proposed universal entanglement witness, the magnetic susceptibility [New J. Phys. 7, 258 (2005)] for the estimation of the critical temperature Tc in the nanotubular system Na2 V3 O7 below which thermal entanglement is present. As a result of an analysis based on the experimental data for dc-magnetic susceptibility, we show that Tc 365 K, which is approximately three times higher than the critical temperature corresponding to the bipartite entanglement.

Original languageEnglish
Article number134404
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume73
Issue number13
DOIs
Publication statusPublished - 2006

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critical temperature
Magnetic susceptibility
magnetic permeability
Temperature
temperature
Hot Temperature

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Thermal entanglement in the nanotubular system Na2 V3 O7. / Vértesi, T.; Bene, E.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 73, No. 13, 134404, 2006.

Research output: Contribution to journalArticle

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