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cond-mat.dis-nn2020
Slow oscillating dynamics of a two-level system subject to a fast telegraph noise: beyond the NIBA approximation
V. V. Mkhitaryan, M. E. Raikh
We study the dynamics of a two-site model in which the tunneling amplitude between the sites is not constant but rather a high-frequency noise. Obviously, the population imbalance…
cond-mat.dis-nn2014★ 1 cited
Supersymmetry approach to delocalization transitions in a network model of the weak field quantum Hall effect and related models
S. Bhardwaj, V. V. Mkhitaryan, I. A. Gruzberg
We consider a recently proposed network model of the integer quantum Hall (IQH) effect in a weak magnetic field. Using a supersymmetry approach, we reformulate the network model in…
cond-mat.dis-nn2011★ 7 cited
Phase diagram of weak-magnetic-field quantum Hall transition quantified from classical percolation
M. Ortuño, A. M. Somoza, V. V. Mkhitaryan +1
We consider magnetotransport in high-mobility 2D electron gas in a non-quantizing magnetic field. We employ a weakly chiral network model to test numerically the prediction of the…