Chaos in the random field Ising model

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Journal Title
Journal ISSN
Volume Title
School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
1998
Major/Subject
Mcode
Degree programme
Language
en
Pages
4284-4287
Series
Physical Review E, Volume 58, Issue 4
Abstract
The sensitivity of the random field Ising model to small random perturbations of the quenched disorder is studied via exact ground states obtained with a maximum-flow algorithm. In one and two space dimensions we find a mild form of chaos, meaning that the overlap of the old, unperturbed ground state and the new one is smaller than 1, but extensive. In three dimensions the rearrangements are marginal (concentrated in the well defined domain walls). Implications for finite temperature variations and experiments are discussed.
Description
Keywords
random field Ising model, chaos
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Citation
Alava, Mikko J. & Rieger, Heiko. 1998. Chaos in the random field Ising model. Physical Review E. Volume 58, Issue 4. 4284-4287. ISSN 1539-3755 (printed). DOI: 10.1103/physreve.58.4284.