Quenched localisation in the Bouchaud trap model with slowly varying traps
成果类型:
Article
署名作者:
Croydon, David A.; Muirhead, Stephen
署名单位:
University of Warwick; University of London; University College London; University of Oxford
刊物名称:
PROBABILITY THEORY AND RELATED FIELDS
ISSN/ISSBN:
0178-8051
DOI:
10.1007/s00440-016-0710-8
发表日期:
2017
页码:
269-315
关键词:
摘要:
We consider the quenched localisation of the Bouchaud trap model on the positive integers in the case that the trap distribution has a slowly varying tail at infinity. Our main result is that for each there exists a slowly varying tail such that quenched localisation occurs on exactly N sites. As far as we are aware, this is the first example of a model in which the exact number of localisation sites are able to be 'tuned' according to the model parameters. Key intuition for this result is provided by an observation about the sum-max ratio for sequences of independent and identically distributed random variables with a slowly varying distributional tail, which is of independent interest.
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