447 citations · 849 across the 28 of their papers we have counts for
7 papers · 1 filter
Nonresonant holeburning in the Terahertz range: Brownian oscillator model
Uli Häberle, Gregor Diezemann
The response to the field sequence of nonresonant hole burning, a pump-wait-probe experiment originally designed to investigate slow relaxation in complex systems, is calculated fo…
Dynamic heterogeneities in the out-of-equilibrium dynamics of simple spherical spin models
Gregor Diezemann
The response of spherical two-spin interaction models, the spherical ferromagnet (s-FM) and the spherical Sherrington-Kirkpatrick (s-SK) model, is calculated for the protocol of th…
Time-dependent optical linewidth in fluctuating environments: Stochastic models
Gregor Diezemann
Time-resolved optical lineshapes are calculated using a second-order inhomogeneous cumulant expansion. The calculation shows that in the inhomogeneous limit the optical spectra are…
Stochastic models for heterogeneous relaxation: Application to inhomogeneous optical lineshapes
Gregor Diezemann, Gerald Hinze, Hans Sillescu
Dynamic heterogeneity has often been modeled by assuming that a single-particle observable, fluctuating at a molecular scale, is influenced by its coupling to environmental variabl…
Comment on "Hole-Burning Experiments within Glassy Models with Infinite Range Interactions"
Gregor Diezemann, Roland Böhmer
Comment on: L.F. Cugliandolo and J.L. Iguain; Phys. Rev. Lett. {\bf 85} 3448 (2000)
Response-theory for nonresonant hole burning: Stochastic dynamics
Gregor Diezemann
Using non-linear response theory the time signals relevant for nonresonant spectral hole burning are calculated. The step-reponse function following the application of a high ampli…
Harmonic Vibrational Excitations in Disordered Solids and the "Boson Peak"
W. Schirmacher, G Diezemann, C. Ganter
We consider a system of coupled classical harmonic oscillators with spatially fluctuating nearest-neighbor force constants on a simple cubic lattice. The model is solved both by nu…