ELFT HÍRADÓ

[tcsaba AT eik.bme.hu]

                    M E G H Í V Ó - I N V I T A T I O N

     Seminar series of the Department of Theoretical Physics at the
           Budapest University of Technology and Economics

                            Tilman Enss
                (Ruprecht-Karls-Universität Heidelberg)

             Many-body localization with ultracold atoms


Noninteracting particles in a random potential can form an Anderson
localized state where single-particle wavefunctions are localized in
space.  The question how interactions affect such a state
has recently attracted much interest, and theoretical progress
has been made by looking at new dynamical observables.

In my talk I will review localization in many-body systems and show
how a purification method can be used to perform exact binary disorder
averages and substantially speed up DMRG-type quench simulations.
I give an outlook how one-dimensional lattice models with binary
disorder can potentially be realized with two species of atoms, and
how purification can be implemented also experimentally.

[1] F. Andraschko, T. Enss, and J. Sirker,
Purification and many-body localization in cold atomic gases,
Phys. Rev. Lett. 113, 217201 (2014).

Idöpont: 2015. szeptember 25., 10:15
Helyszín:
BME Fizikai Intézet, Elméleti Fizika Tanszék,
Budafoki út 8. F-épület, III lépcsöház, szemináriumi szoba

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