433 citations · 4.1k across the 129 of their papers we have counts for
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Transitions at avoided level crossing with interaction and disorder
D. A. Garanin, R. Schilling
We investigate the influence of interaction between tunneling particles and disorder on their avoided-level-crossing transitions in the fast-sweep limit. Whereas the results confir…
Magnetic nanoparticles as many-spin systems
H. Kachkachi, D. A. Garanin
We present a review of recent advances in the study of many-body effects in magnetic nanoparticles. Considering classical spins on a lattice coupled by the exchange interaction in…
Quantum Nonlinear Switching Model
D. A. Garanin, R. Schilling
We present a method, the dynamical cumulant expansion, that allows to calculate quantum corrections for time-dependent quantities of interacting spin systems or single spins with a…
Landau-Zener-Stueckelberg effect in a model of interacting tunneling systems
D. A. Garanin
The Landau-Zener-Stueckelberg (LZS) effect in a model system of interacting tunneling particles is studied numerically and analytically. Each of N tunneling particles interacts wit…