


Forthcoming Seminars at F1
Tuesday 11 Dec 2018 11:15  Lucas Hackl (MPQ Garching)  Low energy spectra from variational tangent planes 

Variational methods are extensively used to study properties of ground states and low excited states. By focusing on a suitable submanifold of states, we can overcome the exponential growth of the Hilbert space with the system size. In this talk, I will introduce a geometric framework to approximate the low lying energy spectrum by studying the linearized Hamiltonian flow on the tangent plane at the ground state. The spectrum is then given by the eigenvalues of the covariant derivative on the variational manifold. Using the paradigmatic BoseHubbard model as an example, I will discuss advantages compared to methods based on directly diagonalizing the Hamiltonian restricted to the tangent plane.
Seminar room for physics (JSI main building) 
Seminars Archive
2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 21 Nov 2017 15:00  Jan Skolimowski  Zigzagchain domain walls facilitate metalisation of the Mott insulator on a triangular lattice 

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24 Oct 2017 11:00  Friedrich Krien  Conservation in strongly correlated systems  A practical viewpoint 

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10 Oct 2017 11:00  Denis Golez  Manipulation of band gap upon photoexcitation of an excitonic insulator 

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27 Jun 2017 15:00  Ana Vranic  Thermodynamics and electron transport on a triangular lattice  comparison between Lanczos and DMFT 

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4 Apr 2017 15:00  Rok Zitko  Infinite U Hubbard model in infinite dimensions: transport in the lowT regime 

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22 Mar 2017 15:00  Markus Aichhorn  Strong Correlations and SpinOrbit Coupling: From Materials to Models 

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7 Mar 2017 15:00  Alen Horvat  Spinorbit coupling in multiorbital impurity models and its relevance for transition metaloxides 

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26 Jan 2017 14:00  Daniel Bauernfeind  Fork Tensor Product States  Efficient Three Orbital Real Time DMFT Solver 

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7 Dec, 2018 Seminar: Dec 11: Low energy spec... Lucas Hackl (MPQ Garchi...  30 Nov, 2018 Seminar: Dec 4: DCtransport pr... Jan Skolimowski (JSI)...  28 Nov, 2018 Publication: Vidmar L., Hackl L., Bi... Phys. Rev. Lett. 121...  2 Nov, 2018 Seminar: Nov 6: Cesium solitons... Tadej Mežnaršič (F5...  26 Oct, 2018 Publication: Zhang Y., Vidmar L. and... Phys. Rev. A 98...  24 Oct, 2018 Abroad: Invited Talk Nejc Košnik...  24 Oct, 2018 Abroad: Invited Talk Jernej F. Kamenik...  19 Oct, 2018 Seminar: Oct 23: The smothered p... Friedrich Krien... 

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