Comment on ``Search for twoscale localization in disordered wires in a magnetic field''
Abstract
In a recent work Schomerus and Beenakker [Phys. Rev. Lett. 84, 3927 (2000)] tried to check numerically our prediction about a twoscale localization in disordered wires in a weak magnetic field. According to our theory an exponential decay of wave functions with the localization length of the orthogonal ensemble is followed at larger distances by another exponential decay with the length of the unitary ensemble. Studying the transmittance, Schomerus and Beenakker did not confirm our theory. The most probable explanation they suggested is that only rare states could have the two scales while ``typical'' states have the only localization length. We suggest another explanation of the discrepancy, namely, that the Borland conjecture relating the transmittance and wave functions to each other may not be used for studying the effect of the magnetic field on the tails of wave functions.
 Publication:

arXiv eprints
 Pub Date:
 May 2000
 arXiv:
 arXiv:condmat/0005048
 Bibcode:
 2000cond.mat..5048K
 Keywords:

 Condensed Matter  Mesoscopic Systems and Quantum Hall Effect;
 Condensed Matter  Disordered Systems and Neural Networks
 EPrint:
 1 page