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Berlin 2018 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 15: Dual-Method Approaches to Quantum Many-Body Systems I

Monday, March 12, 2018, 15:00–18:45, H 0104

To make an impact on possible applications, theoretical approaches for correlated many-body systems must allow for studying more realistic models and lead to more accurate predictions as compared to what is achievable nowadays. This requires, on the one hand, the development of specialized tools which are mathematically and/or algorithmically demanding. On the other hand, an emergent promising approach to make significant progress beyond toy-model understanding of many-body physics is the combined use of two or more complementary methods. The demand for such type of approaches is growing. The two session of contributed talks will provide an overview of recent successes in such dual- (multi-)method approaches involving analytical as well as numerical tools, and will indicate prospects for future directions.

Compilation: Volker Meden, RWTH Aachen; Stefan Wessel, RWTH Aachen

15:00 TT 15.1 Combining diagrammatic Monte-Carlo with large-N field theory — •Gunnar Möller
15:15 TT 15.2 Parquet equations for the 2D Hubbard model using channel decomposition — •Christian Eckhardt, Giulio Schober, and Carsten Honerkamp
15:30 TT 15.3 New approach towards conceptual and numerical extensions of cluster dynamical mean-field theory — •Marcel Klett, Sabine Andergassen, and Philipp Hansmann
15:45 TT 15.4 Functional RG investigation of the antiferromagnetic phase diagram of the three dimensional Hubbard model — •Jannis Ehrlich, Carsten Honerkamp, and Stefan Blügel
  16:00 TT 15.5 The contribution has been withdrawn.
16:15 TT 15.6 Lattice susceptibility calculations via a generalized CT-Hyb QMC DMFT solver — •Julian Mußhoff, Amin Kiani, and Eva Pavarini
16:30 TT 15.7 Effective models for correlated systems: effects of basis orthogonalization — •Qian Zhang and Erik Koch
  16:45 15 min. break.
  17:00 TT 15.8 The contribution has been withdrawn.
17:15 TT 15.9 Logarithmic corrections to the dynamical correlation functions of one-dimensional fermion systems with impurities — •Polina Matveeva, Dominik Straßel, Sebastian Eggert, and Imke Schneider
17:30 TT 15.10 The dynamic structure factor in impurity-doped spin chains — •Kevin Jägering, Annabelle Bohrdt, Sebastian Eggert, and Imke Schneider
17:45 TT 15.11 Influence of phonon-assisted tunneling on the thermoelectric transport through molecular quantum dots — •Andisheh Khedri, Theo Costi, and Volker Meden
18:00 TT 15.12 Functional Renormalization Group Approach to Transport through a Kondo Quantum Dot — •Jan Diekmann and Severin G. Jakobs
18:15 TT 15.13 New hierarchical quantum master equation approach based on an interaction expansion: A first implementation for an Anderson impurity — •Jakob Bätge and Rainer Härtle
18:30 TT 15.14 Auxiliary master equation approach within stochastic wave functions — •Delia Fugger, Max Sorantin, Antonius Dorda, Wolfgang von der Linden, and Enrico Arrigoni
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