Titel | Referent | Datum | Ort |
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Gemeinsames TKM-TFP Seminar | Garst, Mirlin, Rockstuhl, Schmalian, Shnirman |
Montag, 14.00-15.30 Uhr |
10-01 |
TFP Institutsseminar | Garst, Rockstuhl |
Dienstag, 13.00-14.00 Uhr |
10-01 |
IQMT Seminar | Campus Nord, Geb. 425 |
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Physikalisches Kolloquium | Freitag, 15.45-17.15 Uhr |
Lehmann HS |
Kolloquium über Theoretische Physik |
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Vortragender: | Christoph Karrasch |
Datum: | 20.07.2017 17:30 |
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Ort: | Otto Lehmann Lecture Hall, Bldg. 30.22, KIT Campus South |
Zugehörigkeit: | Freie Universität Berlin |
Gastgeber: | Prof. Dr. Alexander Mirlin |
Abstract
Using a combination of numerically exact and renormalization-group techniques we study the nonequilibrium transport of electrons in an one-dimensional interacting system subject to a quasiperiodic potential. For this purpose we calculate the growth of the mean-square displacement as well as the melting of domain walls. While the system is nonintegrable for all studied parameters, there is no finite region of parameters for which we observe diffusive transport. In particular, our model shows a rich dynamical behavior crossing over from superdiffusion to subdiffusion. We discuss the implications of our results for the general problem of many-body localization, with a particular emphasis on the rare region Griffiths picture of subdiffusion.