[seminar] Alexej I. Streltsov, 7.12. (srijeda) 12h (s.t.) točno, seminar ZTF-a

[Anđelo Samsarov]

           SEMINAR  TEORIJSKE  FIZIKE


    (Zajednički seminari Fizičkog odsjeka PMF-a, Zavoda za teorijsku
     fiziku, Zavoda za eksperimentalnu fiziku IRB-a, te
       Znanstvenog centra izvrsnosti QuantiXLie)

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        A time-dependent tour with novel highly non-equilibrium
     quantum many-body phenomena in attractive and repulsive Bose-systems


   Alexej I. Streltsov
   University of Heidelberg, Institute of Physical Chemistry


    Datum:  srijeda, 7. prosinca 2016.
    Vrijeme: 12 sati s.t. (TOČNO)
    Mjesto: IRB, predavaona I krila


   Sažetak:

     Quantum dynamics of trapped ultracold atomic clouds is governed  
by the time-dependent Schrödinger equation (TDSE). In this talk I  
introduce the Multi-Configurational Time-Dependent Hartree for Bosons  
(MCTDHB) method capable of solving the many-boson TDSE numerically  
exactly. We start our tour from attractive BECs and see that together  
with famous coherent “solitonic” solutions there are other dynamically  
stable localized wave-packets propagating without dispersion –  
“fragmentons”. In the second part of our tour we have a look over  
trapped Bose systems with strong repulsive inter-particle interactions  
of finite ranges. We demonstrate that the ground state of these  
systems can have multi-hump densities with well- localized humps.  
Moreover, we show that they are very dynamically stable with respect  
to strong external perturbations.  We discuss the origin of the  
multi-hump structures in the density and the physics behind  
outstanding dynamical stability of these systems.  Finally, I would  
like to announce the release of the MCTDHB-Laboratory – a  
FREE-for-download, cross-platform (Mac-Win-Linux) solver of the TDSE  
with a simple graphical mouse-click interface  
(http://www.mctdhb-lab.com).

Voditelj seminara: Anđelo Samsarov (asamsarov at irb.hr)
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