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  • 1
    Electronic Resource
    Electronic Resource
    An exactly soluble relaxation problem
    Amsterdam : Elsevier
    Physica A: Statistical Mechanics and its Applications 122 (1983), S. 397-412 
    Details
    ISSN: 0378-4371
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0378-4371(83)90039-0
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Excitation morphology of short range Ising spin glasses
    Amsterdam : Elsevier
    Physica A: Statistical Mechanics and its Applications 206 (1994), S. 1-12 
    Details
    ISSN: 0378-4371
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0378-4371(94)90115-5
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    New treatment of low-energy scattering
    Amsterdam : Elsevier
    Physics Letters A 111 (1985), S. 265-268 
    Details
    ISSN: 0375-9601
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0375-9601(85)90623-1
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Relaxation in self similar hierarchies (1995)
    Springer
    The European physical journal 96 (1995), S. 409-416 
    Details
    ISSN: 1434-6036
    Keywords: 05.40 ; 05.70L ; 02.50
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We investigate in some detail the relaxation process in self similar hierarchies. We find that the process can be divided in four different time regimes. After an initial phase in which the connectivity of the hierarchy determines the relaxation, the system enters a kind of stationary state, which can be accurately described by a simple analytical sink-picture. At longer times the behavior of the process is correctly described by the idea of quasiequilibrium. In this regime, propagators decay with power-laws. Finally, the global equilibrium state is reached, and the evolution stops.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01313064
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Exploring valleys of aging systems: the spin glass case (2003)
    Springer
    The European physical journal 36 (2003), S. 233-243 
    Details
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. We present a statistical method for complex energy landscape exploration which provides information on the metastable states--or valleys--actually explored by an unperturbed aging process following a quench. Energy fluctuations of record size are identified as the events which move the system from one valley to the next. This allows for a semi-analytical description in terms of log-Poisson statistics, whose main features are briefly explained. The bulk of the paper is devoted to thorough investigations of Ising spin glasses with Gaussian interactions of both short and long range, a well established paradigm for glassy dynamics. Simple scaling expressions with universal exponents for (a) barrier energies, (b) energy minima, and (c) the Hamming distance as a function of the valley index are found. The distribution of residence time inside valleys entered at age t w is investigated, along with the distribution of time at which the global minimum inside a valley is hit. Finally, the correlations between the minima of the landscape are presented. The results fit well into the framework of available knowledge about spin glass aging. At the same time they support a novel interpretation of thermal relaxation in complex landscapes with multiple metastable states. The marginal stability of the attractors selected is emphasized and explained in terms of geometrical properties of the landscape.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1140/epjb/e2003-00340-y
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    Paper (German National Licenses)
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