Macros and Multiscale Dynamics in Spin Glasses

Details Macros and Multiscale Dynamics in Spin Glasses Macros and Multiscale Dynamics in Spin Glasses

1996-03-10

arxiv.org/abs/cond-mat/9603056v1

Physics

Condensed Matter

12 pages in uuencode + gzip form, with 10 figures. Submited to Phys. Rev. E

Scientific paper

We study the spacial and temporal multiscale properties of complex systems. We present accelerated algorithms for dilute spin glasses and display explicitly their relation to the effective dynamics of specific collective degrees of freedom (macros). We discuss the difficulties in applying multiscale-cluster algorithms(MCA) to general frustrated systems: MCA does not succeed to break the system into clusters. We relate these difficulties to rigorous negative results in systems with an ultrametric space of ground states: the tunneling between vacua cannot be expressed into an algorithm acting upon independent macros.

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