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Diffusion in disordered lattices and related heisenberg ferromagnets

Abstract:

We study the diffusion of classical hard-core particles in disordered lattices within the formalism of a quantum spin representation. This analogy enables an exact treatment of noninstantaneous correlation functions at finite particle densities in terms of single spin excitations in disordered ferromagnetic backgrounds. Applications to diluted chains and percolation clusters are discussed. It is found that density fluctuations in the former exhibit a stretched exponential decay while an anoma...

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Publication status:
Published

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Publisher copy:
10.1103/physreve.61.324

Authors


Grynberg, MD More by this author
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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics
Journal:
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
Volume:
61
Issue:
1
Pages:
324-331
Publication date:
2000-01-05
DOI:
EISSN:
1095-3787
ISSN:
1063-651X
URN:
uuid:4f688d5b-eadb-4ef7-94ca-e31cc3d3074f
Source identifiers:
7642
Local pid:
pubs:7642
Language:
English

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