Curriculum Vitae

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Personal information

Thomas Schäfer
Collège de France, group of Prof. Antoine Georges
11 place Marcelin Berthelot
75005 Paris, France
thomas.schaefer@college-de-france.fr
ResearcherID, Google Scholar

Research Interests

Strongly correlated electron systemsQuantum criticalityHigh-temperature superconductivityQuantum many-body techniques
Physics of the Hubbard modelquantum and classical critical phenomenapseudogap physicsdynamical mean field theory (DMFT)
Mott-Hubbard metal-insulator transitionquantum magnetismunconventional pairing mechanismscluster (DCA) and diagrammatic (DΓA, TRILEX) extensions of DMFT
low-dimensional systemselectronic Kohn anomaliesfluctuation diagnostics and parquet decomposition

Employment

01/03/2019 - presentErwin-Schrödinger Fellow funded by the Austrian Science Fund
FWF project J-4266 "SuMo - Superconductivity in the vicinity of Mott insulators"
hosted by Prof. Antoine Georges (École Polytechnique and Collège de France, Paris, France with regular visits to the Center for Computational Quantum Physics, Flatiron Institute, New York, USA), budget 160,000 euros
01/09/2017 - 28/02/2019Postdoctoral reseacher
Groups of Prof. Antoine Georges and Prof. Olivier Parcollet
Funded by ERC Synergy Grant Q-MAC
Collège de France, Paris
École Polytechnique, Palaiseau
01/09/2016 - 31/07/2017Postdoctoral reseacher
Group of Prof. Alessandro Toschi
Funded by FWF project "Collective phenomena in oxide films and hetero-structures" (F4115-N28)
Institute of solid state physics, TU Wien, Wien

Education

01/02/2013 - 29/09/2016PhD studies in theoretical condensed matter physics, promotion
"sub auspiciis praesidentis rei publicae" on the 05/12/2017
Thesis "Classical and quantum phase transitions in strongly correlated electron systems"
Supervisors: Prof. Karsten Held and Prof. Alessandro Toschi
Funded by funded by FWF Doctoral School "Building Solids for Function"
TU Wien, Austria
01/10/2010 - 16/12/2012Master studies in theoretical and mathematical physics passed "with distinction"
Thesis "Electronic correlations at the Two-Particle Level" awarded with the Award for an outstanding and excellent thesis of the City of Vienna (2013)
Supervisor: Prof. Alessandro Toschi
Funded by FWF project “Quantum criticality in strongly correlated magnets
(QMC)" (I 610-N16)
TU Wien, Austria
01/10/2007 - 30/09/2010Bachelor studies in technical physics passed "with distinction"
Thesis "Numerical Simulation of μSR for specific Kondo-systems"
Supervisor: Prof. Herwig Michor
TU Wien, Austria

Invited Talks and Seminars

26/09/2019Magnetism meets strong correlations: classical and quantum criticality in two and three dimensions
Symposium "Theory of Novel Materials", Max-Planck Institute for Solid State Physics, Stuttgart, Germany
24/09/2019Magnetism meets strong correlations: classical and quantum criticality in two and three dimensions
Seminar at Institute for Theoretical Physics, host Prof. Sabine Andergassen, Universität Tübingen, Germany
30/07/2019Magnetism meets strong correlations: classical and quantum criticality in two and three dimensions
Quantum Embedding Theory Seminar at CCQ (Flatiron Institute), New York, USA
29/08/2018Surely, you're joking, Mr. Feynman?! The breakdown of traditional diagrammatic perturbation theory
Lectiones Clitumnaliae, Campello sul Clitunno, Umbria, Italy
12/03/2018Surely, you're joking, Mr. Feynman?! The breakdown of traditional diagrammatic perturbation theory
Spring Meeting of the Condensed Matter Division of the German Physical Society (DPG), Berlin, Germany
09/01/2017The physics underlying electronic spectra: from parquet decomposition to fluctuation diagnostics
Collège de France (Antoine Georges), Paris, France
14/06/2016Irreducible Vertex Divergences: Non-Perturbative Landscape of the Mott-Hubbard transition
Workshop on multiple solutions in condensed matter theories, Paris, France
26/11/2015The Mott-Hubbard transition in (in)finite dimensions - divergent precursors and a sad fate
Seminar "Quantum many-body phenomena in the solid state", University of Würzburg, Germany

Teaching

Winter term 2019Exercises on "Advanced Quantum Physics", Bachelor Programme, École Polytechnique
2018-2020Supervisor for Projet de Recherche en Laboratoire (PRL), École Polytechnique
Winter term 2016Lecturer substitute for "Advanced Theory of Superconductivity and Magnetism"
Winter and summer term 2016Organizer of the "Condensed Matter Theory Journal Club", Institute of Solids State Physics
Summer term 2015Organizer and teaching assistant "Exercises on Quantum Field Theory for Many-Body Systems"
Winter term 2014Organizer and teaching assistant "Exercises on Quantum Theory II"
Winter term 2013Organizer and teaching assistant "Exercises on Quantum Theory I"

Scientific Supervision

2019Project Thesis of Alfred Kirsch: "Properties of two- and three dimensional strongly correlated models"
Co-supervision together with Prof. Michel Ferrero and Dr. Fedor Šimkovic
CPHT, École Polytechnique, Palaiseau
2018-2019Project Thesis of François-Marie Le Régent: "Random phase approximation for the two-dimensional Hubbard model"
Co-supervision together with Prof. Michel Ferrero
CPHT, École Polytechnique, Palaiseau
2018-2019Master Thesis of Alexander Vock : ""Numerical methods for quantum criticality"
Co-supervision together with Prof. Alessandro Toschi
Inst. of Solid State Physics, TU Wien
2016-2017Master Thesis of Marie-Therese Philipp: "Influcence of electronic correlations on the temperature behavior of scattering rates for cuprates"
Co-supervision together with Prof. Alessandro Toschi
Inst. of Solid State Physics, TU Wien
2016-2017Project work of Benjamin Klebel: "Space-time separability of the electronic self-energy: the crossover from three to two dimensions"
Co-supervision together with Prof. Alessandro Toschi
Inst. of Solid State Physics, TU Wien
2015Bachelor Thesis of Clemens Watzenböck: "Multidimensional density of states for many-electron calculations"
Co-supervision together with Prof. Alessandro Toschi
Inst. of Solid State Physics, TU Wien

Honors and Awards

2018Erwin-Schrödinger Fellow of the Austrian Science Fund (FWF), 160,000 Euros budget
2018Awardee of the Scholarship of Excellence of the Austrian Federal Ministry of Education, Science and Research, 9,000 Euros budget
2018Finalist of the Dissertation-Prize Symposium of the Condensed Matter Division of the German
Physical Society (DPG)
2017"Promotio sub auspiciis Praesidentis rei publicae" (highest achievable honor for university and school studies, promotion by the federal president of Austria)
2013Award for an outstanding and excellent diploma thesis of the City of Vienna
2013, 2011, 2010Awardee of the “Siegfried Ludwig Stiftung" scholarship
2012, 2010Awardee of the Stiftungsstipendium of the TU Wien
2012, 2011, 2009, 2008, 2007Awardee of the "Windhag" student scholarship
2009, 2008Awardee of the student scholarships of the Faculty for Physics of the TU Wien, for excellent achievement
2006Golden Ring of Honor of HTBLuVA St. Pölten

International Scientific Activities

since 2018Organizer of the "Condensed Matter Theory Seminar", Collège de France (2019)
since 2018Application evaluator for the Admissions Commission of the Bachelor Programme of École Polytechnique
since 2018Referee for Physical Review B
since 2016Referee for Physica Status Solidi (pss)
since 2015Referee for Europhysics Letters (EPL)
June 2015Young Scientist Attendee of the 65th Interdisciplinary Lindau Nobel Laureate Meeting (after multi-level international selection process)
February 2012Visitor of Max-Planck Institute Stuttgart and scientific collaboration with O. Gunnarsson (FWF project I 610-N16)
since 2012Member of the American Physical Society (APS)
June - August 2011Attendee of the official CERN summer student program, Genève (after multi-level international selection process)

Hobbies

Competitive ballroom dancing
Wine and Food