2000/05/21 by Matthias Weiss, Matthias Weiß, Tsampikos Kottos +2 · 2 citations
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Nonlinear Photonic Systems #Quantum chaos and dynamical systems #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.63.081306
4 pages, 4 figures
arxiv created 2000/05/21 · openalex publication_date 2001/02/07 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study the localization properties of wavepackets in disordered wires in a magnetic field. A formula for the steady-state wave function at the crossover regime from preserved to broken time-reversal symmetry is proposed, which is in excellent agreement with our numerical data. In contrast to a recent supersymmetry approach the extracted asymptotic decay rate of the steady state changes smoothly in the crossover regime. Finally, we investigate fluctuation properties around the steady state and find a scaling for the variance of the wavepacket which also shows a smooth transition due to the magnetic field.