Invited Talks at Conferences, Workshops and Schools

• Force correlations in disordered systems and this year’s Nobel prize in physics, 1/2022, colloquium of LPTMS, Orsay, France, [web].
• Force correlations in disordered systems and this year’s Nobel prize in physics, 11/2021, colloquium in honour of Franz Wegner's 80th birthday, Heidelberg, Germany.
• Universal force correlations at depinning, and what they teach us , 9/2021, Spetses, Greece.
• How can the perturbative renormalization group help the bootstrap, and what are interesting questions for the bootstrap?, 5/2021, BootStat 2021, Institut Pascal, Orasay, France, [talk].
• Loop-erased Random Walks, Charge-Density Waves, φ⁴-Theory and the Abelian Sandpile model, Complex 2020, 12/2020, online, [movie].
• Field theories for loop-erased random walks, 5/2019, MECO 44, Seon, Germany.
• Field theories for loop-erased random walks, "Workshop on Multi-Loop Calculations: Methods and Applications", 5/2019, Paris, France.
• Field theories for loop-erased random walks, 2/2019, Conference "Avalanche Dynamics and Precursors of Catastrophic Events", Les Houches, France.
• Field theories for loop-erased random walks, 10/2018, Conference JSTAT, Paris, France.
• Field theories for loop-erased random walks, 6/2018, Conference "Fascination with fluctuations, correlations and disorder" in honor of M. Kardar's 60th birthday, MIT, Boston, USA.
• Field theory of avalanches at depinning and relation to sandpiles, 5/2018, Nordita, Stockholm, Sweden.
• Statistical Mechanics of RNA folding, 4/2018, Conference "Field Theories come to Life", Imperial College, London, England.
• Avalanches at depinning and relation to sandpile models, 1/2018, conference "Beyond Mean Field Theory", Rome, Italy.
• Field theory of avalanches at depinning and relation to sandpiles, 3/2017, LPTMS, Orsay, France.
• Field theory of avalanches at depinning and relation to sandpiles, 2/2017, MECO 42, Lyon, France.
• Field theory of avalanches at depinning and relation to sandpiles, 1/2017, Univeristät Duisburg-Essen, Duisburg, Germany.
• Non-Conventional Fixed Points in the RG, 7/2016, conference "Renormalization Group Theory of Disordered Systems", Paris, France.
• Extreme Value Statistics for Fractional Brownian Motion, 7/2016, conference "STATPHYS26", Lyon, France.
• Extreme Value Statistics for Fractional Brownian Motion, 3/2016, Theory Seminar of LPTHE, Paris, France.
• The field theory of Avalanches, 9/2015, conference "Models in Quantum Field Theory 2015", Sankt Petersburg, Russia.
• Avalanches, an Overview, 3/2015, workshop "Avalanches", Courmayeur, Italie.
• Avalanches, 9/2014, workshop "Avalanches, Intermittency, and Nonlinear Response in Far-From-Equilibrium Solids", Santa Barbara, USA, Blackboard Lecture (Web Cam), slides
• Avalanches, 6/2014, conference "Driven disordered systems", Grenoble, France.
• Avalanches, 11/2013, Seminar of the Chair of Molecular Physics, Yerevan State University, Armenia.
• RNA-folding: Biophysics meets Statistical Physics and the Renormalization Group, 5/2013, conference "Physical Concepts of Nucleic-Acid Structure and Behavior", Yerevan, Armenia.
• Multifractality In Disordered Sytems, 5/2013, workshop "Statistical Physics and Low Dimensional Systems", Pont-à-Mousson, France.
• Avalanches, 3/2013, Condensed Matter Seminar, Solid State Theory Group, Centro Atomico Bariloche, Argentina.
• Avalanches, 2/2013, Physics colloquium, ENS Lyon, France.
• From Avalanches to the Effective Ation, and back, 9/2012, 6th International Conference on the Exact Renormalization Group, ERG 2012, Aussois, France.
• Avalanche dynamics of elastic manifolds driven in (or on) disordered solids, 6/2012, Conference "Mechanics and Physics" organized by Institut d'Alembert in collaboration with "Société Française de Physique" and "Association Française de Mécanique", Paris, France.
• Avalanches, 5/2012, Theorie-Kolloquium, Ludwigs-Maximilians-Universität München, Germany.
• Avalanches, 4/2012, Workshop "New Directions in Turbulence", KITPC, Beijing, China.
• RNA folding, 4/2012, Keynote at "Annual Seminar of the Shanghai Center for Bioinformation Technology", Shanghai, China [Poster in Chinese].
• Avalanches, 10/2011, Laboratoire Charles Coulomb, Montpellier, France.
• Logarithmic CFT in a disordered electronic system, 10/2011, Conference "Logarithmic CFT and Representation Theory", IHP, Paris, France.
• Avalanches, 6/2011, SPEC, CEA Saclay, France.
• Fractional Brownian Motion in Presence of Absorbing Boundaries, 12/2010, Conference "Random Gemetry and Applications", Nordita, Stockholm, Sweden.
• Avalanche-Size Distributions: Beyond toy models and mean field, 9/2010, Program on "Electron Glasses", KITP, UCSB, Santa Barbara, CA, USA, Blackboard Lecture (Web Cam), slides.
• Avalanche-size distributions from field theory, Program on "Emerging Concepts in Glass Physics", 5/2010, KITP, UCSB, Santa Barbara, CA, USA, Avalanche-size Distributions From Field Theory (2008)
  Blackboard Lecture (Web Cam).
• Height fluctuations of a contact line: a direct measurement of the renormalized disorder correlator, 2/2010, Oxford, England.
• Height fluctuations of a contact line: a direct measurement of the renormalized disorder correlator, 11/2009, Oslo, Norway.
• Height fluctuations of a contact line: a direct measurement of the renormalized disorder correlator, 9/2009, Duisburg, Germany.
• Height fluctuations of a contact line: a direct measurement of the renormalized disorder correlator, Congres de la SFP, 7/2009.
• Fluctuation Forces on 2D Polymers, 9/2008, KITP, Santa Barbara, CA, USA, Blackboard Lecture (Web Cam), Notes.
• Domain walls in Random Potts, School on "Stochastic Geometry, the Stochastic Löwner evolution, and Non-Equilibrium Growth processes", ICTP, Trieste, Italy, 7/2008
• RNA-folding: Biophysics meets Statistical Physics and the Renormalization Group, School on "Manifolds in random media, random matrices and extreme value statistics", Beg Rohu, 6/2008
• How to calculate and measure the effective action and the avalanche size distribution for disordered systems, Statistical Physics and Low Dimensional Systems 2008, Nancy, 5/2008
• RNA-Faltung, 12/2007, Physik-Kolloquium, Würzburg, Germany.
• How to measure the effective action for disordered systems, PI-2007: Path Integrals - New Trends and Perspectives, MPI-PKS Dresden, Germany, 9/2007
• Glassiness in RNA folding, March Meeting of the APS, in topical session "RNA Folding at the Crossroads Between Molecular Biology and Statistical Physics", Denver, CO, USA, 3/2007.
• Functional Renormalization for Disordered Systems: Basic Recipes and Gourmet Dishes, "Stochastic Geometry and Field Theory: From Growth Phenomena to Disordered Systems", pedagogical lecture for program at KITP, UCSB, Santa Barbara, CA, USA, 11/2006, Blackboard Lecture (Web Cam), Notes.
• Freezing of random RNA, 1/2006, Séminaire du ESPCI, Paris, France.
• Elastic Manifolds in Disorder, "Inhomogeneous Random Systems", Workshop at Institut Henri Poincarée, Paris, France, 1/2006.
• Folding RNA: Living Feynman diagrams, 12/2005, Theorie-Kolloquium, Uni Essen-Duisburg, Germany.
• Depinning of Domain Walls, Contact Lines... and Cracks?, "From the Atomic to the Tectonic: Friction, Fracture and Earthquake Physics", KITP program, KITP, 11/2005, UCSB, CA, USA.
• Functional Renormalization for Disordered Systems: The Way out of Dimensional Reduction, "Renormalization and Scaling (SYRS)", 9. Jahrestagung der Deutschen Physikalischen Gesellschaft (DPG), 3/2005, Berlin, Germany.
• Supersymmetry breaking in Disordered Systems and Relation to Functional Renormalization and Replica-Symmetry Breaking, "Workshop in honor of the 60th birthday of Prof. Lothar Schäfer", 1/2005, Essen, Germany.
• Fabry-Perot interference and spin filtering in carbon nanotubes, "International Workshop on Nanoscale Structure and Dynamics", 9/2004, Wittenberg, Germany.
• Why you need a functional RG to survive in a disordered world, STATPHYS-22, 7/2004, Bangalore, India.
• Dynamic in a disordered world, "Pattern Formation in Nonequilibrium Systems", Sattelite Meeting to STATPHYS-22, 7/2004, Kalkotta, India.
• Functional RG for stronlgy disordered systems, Workshop on Mesoscopic Systems, 6/2004, ICTP, Trieste, Italy.
• Dynamisch in einer ungeordneten Welt, 6/2004, Theorie-Kolloquium, Uni Aachen, Germany.
• Dynamisch in einer ungeordneten Welt, 5/2004, Theorie-Kolloquium, Uni Essen-Duisburg, Germany.
• Why you need a functionl RG to survive in a disordered world, Fourth Eurogrid Meeting ``Random Geometry: Theory and Applications'', 3/2004, Les Houches, France.
• Dynamic in a disoredered world, 4/2004, Theorie-Kolloquium, Uni Köln, Germany.
• Dynamique dans un monde désordonné, 4/2004, Université d'Orsay.
• Dynamique dans un monde désordonné, 3/2004, SPhT, CEN de Saclay, France.
• Warum braucht man eine funktionelle Renormierung um in einer ungeordneten Welt zu überleben?, 2/2004, Leipzig, Germnay.
• Why you Need Functional RG to Survive in a Disordered World, 1/2004, Pittsburgh University, Pittsburgh, USA.
• Pourquoi faut-il une renormalisation fonctionelle pour survivre dans un monde désordonné?, 10/2003, Colloque commun de LPTHE (Jussieu) et LPT (ENS), Paris, France.
• Why you need a functional RG to survive in a disordered world, 8/2003, Workshop Tracomes, MPI-PKS, Dresden, Germany.
• Why you need a Functional RG to survive in a disordered world, 5/2003, Workshop Glassy States of Matter and Nonequilibrium Quantum Dynamics, KITP, Santa Barbara, USA.
• Functional renormalization group treatment of disordered systems 3/2003, MIT, Boston, USA.
• Functional renormalization for disordered systems, 3/2003, Workshop Functional Renormalization in Interacting Quantum Many-Body Problems, MPI-PKS, Dresden, Germany.
• Une fonction β exacte et corrections à 4 boucles, 1/2003, LPT, Ecole Normale Superieure, France.
• Une fonction β exacte et corrections à 4 boucles, 1/2003, SPHT, CEA Saclay, France.
• Systemes désordonnés et renormalisation fonctionelle, 1/2003, LPT, Université de Strassbourg, France.
• Disorder and functional renormalization, 1/2003, École polytechnique fédérale de Lausanne, Suisse.
• Disorder and the functional renormalization group, colloquium, 10/2002, University of California at Santa Cruz, USA.
• Eine exakte β-Funktion und Korrekturen in 4-loop Ordnung, 7/2002, Uni Essen.
• An exact β-function and corrections at 4-loop order, 7/2002, UCSB, Santa Barbara, CA.
• The functional renormalization group approach to disordered systems: Limit N -> oo, invited talk, 7/2002, Conference TH-2002, Paris, France.
• Disordered Systems and Functional Renormalization, Plenary Lecture, 3/2002, Conference RG 2002 in Strba, Slovakia.
• Ungeordnete Systme und funktionelle Renormierung, Theorie-Kolloquium, 11/2001, Uni Saarbrücken.
• Ungeordnete Systme und funktionelle Renormierung, Theorie-Kolloquium, 11/2001, Uni Heidelberg.
• Ungeordnete Systme und funktionelle Renormierung, 11/2001, MPI für Polymerforschung, Mainz.
• Ungeordnete Systme und funktionelle Renormierung für große N, 11/2001, SFB-Seminar, Essen.
• Funktionelle Renormierungsgruppe und Replica-Symmetrie-Brechung, 11/2001, Theorie-Kolloquium, Köln.
• Systemes désordonnés et groupe de renormalisation fonctionnelle, 11/2001, Orsay, France.
• Systemes désordonnés et groupe de renormalisation fonctionnelle, 11/2001, ENS, Paris, France.
• Systemes désordonnés et groupe de renormalisation fonctionnelle, 11/2001, C.E. de Saclay, France.
• Functional renormalization group at large N for random manifolds, and relation to replica symmetry breaking , 11/2001, ITP, UCSB, Santa Barbara
• Pinning elastischer Membrane. Wie funktioniert es jenseits von 1-loop?, 10/2000, Theorie-Seminar, Universität Essen.
• Das passive Polymer-Problem, 5/2000, Theorie-Seminar, Universität Essen.
• Polymerisierte Membrane, 3/2000, IFF-Seminar, FZ Jülich.
• Polymerized Membranes, a Review, 4/2001, ITP, UCSB, Santa Barbara
• Polymerisierte Membrane, 3/2000, plenary lecture, Frühjahrstagung der DPG, Regensburg.
• Das passive Polymer-Problem, 2/2000, Workshop, Kostenz.
• Polymerisierte Membrane, 2/2000, Theorie-Kolloquium, Universität Göttingen.
• Der Nobel-Preis für Physik 1999, 12/1999, Kolloquium, Seminar Universität Essen.
• Regeln in Mathematica, 10/1999, Seminar, Universität Essen.
• Polymerisierte Membrane, 11/1998, Kolloquium, Universität Essen.
• Polymerized tethered membranes, 7/1999, Theorie-Kolloquium, Freie Universität Berlin.
• Polymerized tethered membranes, 2/1999, Theorie-Kolloquium, Universität Köln.
• Glassy trapping of manifolds by non-potential random forces, 7/1998, STATPHYS 20, Paris, France.
• Universelles Verhalten von Polymeren und Membranen in Zufallskraftfeldern, 6/1998, SFB-Kolloquium, Universität Halle.
• Polymerized tethered membranes, 7/1998, Applications of Field Theory to Statistical Physics, Bonn.
• Verallgemeinerung des O(N)-Modells auf N-farbige Membrane, 1/1998, Theorie-Seminar, Universität Essen.
• Mécanique statistique des membranes auto-évitantes, 12/1997, Université Orsay, France.
• Genéralisation du modéle O(N)aux membranes à N couleurs, 11/1997, SPhT, CE de Saclay, France.
• Über die Störungs-Entwicklung der KPZ-Gleichung, 11/1997, Uni Essen.
• Dynamik von Polymeren und Membranen, 10/1997, SFB-Workshop Gronau.
• Selbst-vermeidende polymerisierte Membrane, 7/1997, SFB-Kolloquium, TU Garching.
• Polymere und polymerisierte Membrane: Exakte Ergebnisse für statische und dynamische kritische Exponenten, 7/1997, FZ Jülich.
• New renormalisation group results for scaling of self-avoiding tethered membranes (statics and dynamics), 3/1997, NFS-seminar, MIT, Boston.
• Selbst-vermeidende polymerisierte Membrane, 10/1996, SFB-Workshop, Bad Honnef
• Membranes polymérisées auto-évitantes, 9/1996, SPhT, CE Saclay, France.
• Résultat récents sur des membranes polymérisées auto-évitantes, 9/1996, Présentation avant le conseil scientifique exterieur, Colleville, France.
• Promenade autour des membranes autoévitantes, 6/1996, SPhT, CE Saclay, France.
• Renormierung selbst-vermeidender Membrane, 1/1996, SFB-Seminar, Essen.
• Renormalisation des membranes auto-évitantes, 1/1996, Seizième rencontre de physique statistique de Paris, ESPCI, Paris, France.
• Renormalisation des membranes auto-évitantes au point tricritique, 10/1995, SPhT, CE Saclay, France.
• Renormalisation des membranes auto-évitantes au point tricritique, 6/1995, SPhT, CE Saclay, France.
• Renormierung selbst-vermeidender Membrane am trikritischen Punkt, 4/1995, Theorie-Kolloquium, Heidelberg.
• Renormalisation des membranes auto-évitantes au point tricritique, 3/1995, SPhT, CE Saclay, France.
• Renormalisation des membranes auto-évitantes au point tricritique, 2/1995, Institut Henri Poincaré, Paris, France.
• Renormalisation des membranes auto-évitantes - ou comment repasser une membrane froissée, 12/1994, Journées des Jeunes Chercheurs, Carry-les-Rouets, France.
• Renormalisation des membranes auto-évitantes, 11/1994, SPhT, CE Saclay, France.
• Die Renormierung nicht-lokaler Feldtheorien - von Polymeren zu Membranen, 4/1994, Theorie-Seminar, Heidelberg.
• La fonction zeta pour un modèle sigma non-linéaire super-symmetrique, 10/1993, SPhT, CE Saclay, France.
• Die Zeta-Funktion für ein super-symmetrisches nicht-lineares Sigma-Modell, 1/1993, Theorie-Seminar, Universität Heidelberg.