Multifractality of eigenfunctions in spin chains

We investigate different one-dimensional quantum spin-1/2 chain models, and by combining analytical and numerical calculations we prove that their ground state wave functions in the natural spin basis are multifractals with, in general, nontrivial fractal dimensions.

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Veröffentlicht in:Physical review. E, Statistical, nonlinear, and soft matter physics Statistical, nonlinear, and soft matter physics, 2012-08, Vol.86 (2 Pt 1), p.021104-021104, Article 021104
Hauptverfasser: Atas, Y Y, Bogomolny, E
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Sprache:eng
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Zusammenfassung:We investigate different one-dimensional quantum spin-1/2 chain models, and by combining analytical and numerical calculations we prove that their ground state wave functions in the natural spin basis are multifractals with, in general, nontrivial fractal dimensions.
ISSN:1539-3755
1550-2376
DOI:10.1103/physreve.86.021104