{ "id": "cond-mat/9904200", "version": "v1", "published": "1999-04-14T13:27:29.000Z", "updated": "1999-04-14T13:27:29.000Z", "title": "Density of states in coupled chains with off-diagonal disorder", "authors": [ "P. W. Brouwer", "C. Mudry", "A. Furusaki" ], "comment": "4 pages, RevTeX; 3 figures included with epsf", "journal": "Phys. Rev. Lett 84, 2913 (2000)", "doi": "10.1103/PhysRevLett.84.2913", "categories": [ "cond-mat.dis-nn", "cond-mat.mes-hall" ], "abstract": "We compute the density of states (d.o.s.) in N coupled chains with random hopping. At zero energy, the d.o.s. shows a singularity that strongly depends on the parity of N. For odd N, the d.o.s. is proportional to 1/(E (\\ln |E|)^3), with and without time-reversal symmetry. For even N, the d.o.s. is proportional to \\ln |E| in the presence of time-reversal symmetry, while there is a pseudogap, d.o.s. proportional to E \\ln |E|, in the absence of time-reversal symmetry.", "revisions": [ { "version": "v1", "updated": "1999-04-14T13:27:29.000Z" } ], "analyses": { "keywords": [ "coupled chains", "off-diagonal disorder", "time-reversal symmetry", "proportional", "zero energy" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. Lett." }, "note": { "typesetting": "RevTeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable" } } }