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Berlin 2005 – scientific programme

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DF: Dielektrische Festkörper

DF 7: Gl
äser I (gemeinsam mit FV DY)

DF 7.1: Invited Talk

Monday, March 7, 2005, 10:00–10:30, TU A060

Domain walls in Ising spin glasses — •Timo Aspelmeier — Institut für Theoretische Physik, Universität Göttingen

Domain walls, i.e. the boundaries of energetically low-lying droplets of overturned spins, are at the heart of the droplet theory of spin glasses. They are, however, not limited to droplet theory and their effects can also be found in the rivalling replica field theory (RFT). In particular it is possible to calculate the domain wall exponent θ within RFT exactly. The result of this calculation differs markedly from droplet picture expectations. Numerical measurement of θ can therefore provide a new test to distinguish between the two theories.

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