2 papers
cond-mat1996
The Upper Critical Dimension of the KPZ Equation
Michael Lassig, Harald Kinzelbach
The strong-coupling regime of Kardar-Parisi-Zhang surface growth driven by short-ranged noise has an upper critical dimension d_> less or equal to four (where the dynamic exponent…
cond-mat1994
Fermions in a random medium
Harald Kinzelbach, Michael Lassig
We study the continuum field theory for an ensemble of directed polymers r_i (t) in 1+d' dimensions that live in a medium with quenched point disorder and interact via short-ranged…