1995/11/07 by Felix von Oppen, von Oppen, Felix, Tilo Wettig +1
Physics and Astronomy · #Advanced Chemical Physics Studies #Condensed Matter (cond-mat) #FOS: Physical sciences #Quantum and electron transport phenomena #Topological Materials and Phenomena #cond-mat
paper · pdf · doi:10.48550/arxiv.cond-mat/9511038
4 pages and 3 figures in a uuencoded, compressed tar file; uses revtex and psfig.sty (included); to appear in Europhys. Lett
arxiv created 1995/11/07 · openalex publication_date 1995/11/07 · arxiv updated 2009/11/30 · openalex created_date 2022/10/03 · openalex updated_date 2026/07/28
It has recently been established that a short-range interaction can strongly\ndelocalize a pair of particles moving in a disordered potential. We investigate\nwhether an analogous effect exists also for pairs of quasiparticles in the\nAnderson insulator by employing an approximate numerical evaluation of the\ntwo-particle Green function of the many-body system. At the Fermi energy, the\nquasiparticle pair is localized on the scale of the single-particle\nlocalization length. The delocalization effect is recovered when the excitation\nenergy of the pair is comparable to the bandwidth.\n