Disorder-induced order in quantum XY chains

A. Niederberger, M. M. Rams, J. Dziarmaga, F. M. Cucchietti, Jan Wehr, M. Lewenstein

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

We observe signatures of disorder-induced order in one-dimensional XY spin chains with an external site-dependent uniaxial random field within the XY plane. We numerically investigate signatures of a quantum phase transition at T=0, in particular, an upsurge of the magnetization in the direction orthogonal to the external magnetic field and the scaling of the block entropy with the amplitude of this field. Also, we discuss possible realizations of this effect in ultracold atomic experiments.

Original languageEnglish (US)
Article number013630
JournalPhysical Review A
Volume82
Issue number1
DOIs
StatePublished - Jul 23 2010

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signatures
disorders
entropy
scaling
magnetization
magnetic fields

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Niederberger, A., Rams, M. M., Dziarmaga, J., Cucchietti, F. M., Wehr, J., & Lewenstein, M. (2010). Disorder-induced order in quantum XY chains. Physical Review A, 82(1), [013630]. https://doi.org/10.1103/PhysRevA.82.013630

Disorder-induced order in quantum XY chains. / Niederberger, A.; Rams, M. M.; Dziarmaga, J.; Cucchietti, F. M.; Wehr, Jan; Lewenstein, M.

In: Physical Review A, Vol. 82, No. 1, 013630, 23.07.2010.

Research output: Contribution to journalArticle

Niederberger, A, Rams, MM, Dziarmaga, J, Cucchietti, FM, Wehr, J & Lewenstein, M 2010, 'Disorder-induced order in quantum XY chains', Physical Review A, vol. 82, no. 1, 013630. https://doi.org/10.1103/PhysRevA.82.013630
Niederberger A, Rams MM, Dziarmaga J, Cucchietti FM, Wehr J, Lewenstein M. Disorder-induced order in quantum XY chains. Physical Review A. 2010 Jul 23;82(1). 013630. https://doi.org/10.1103/PhysRevA.82.013630
Niederberger, A. ; Rams, M. M. ; Dziarmaga, J. ; Cucchietti, F. M. ; Wehr, Jan ; Lewenstein, M. / Disorder-induced order in quantum XY chains. In: Physical Review A. 2010 ; Vol. 82, No. 1.
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