Yayınlanmış 1 Ocak 2009 | Sürüm v1
Dergi makalesi Açık

Critical percolation phase and thermal Berezinskii-Kosterlitz-Thouless transition in a scale-free network with short-range and long-range random bonds

  • 1. Tech Univ Munich, Dept Phys, D-85748 Garching, Germany

Açıklama

Percolation in a scale-free hierarchical network is solved exactly by renormalization-group theory in terms of the different probabilities of short-range and long-range bonds. A phase of critical percolation, with algebraic [Berezinskii-Kosterlitz-Thouless (BKT)] geometric order, occurs in the phase diagram in addition to the ordinary (compact) percolating phase and the nonpercolating phase. It is found that no connection exists between, on the one hand, the onset of this geometric BKT behavior and, on the other hand, the onsets of the highly clustered small-world character of the network and of the thermal BKT transition of the Ising model on this network. Nevertheless, both geometric and thermal BKT behaviors have inverted characters, occurring where disorder is expected, namely, at low bond probability and high temperature, respectively. This may be a general property of long-range networks.

Dosyalar

bib-c0fd89c4-77d8-413f-9ae8-6227e1452829.txt

Dosyalar (223 Bytes)

Ad Boyut Hepisini indir
md5:003a1f7a06b29c10cbcd0e4c3017b603
223 Bytes Ön İzleme İndir