Roderich Tumulka's Talks

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• Interior-boundary conditions and their physical meaning
  This talk I gave on 2 December 2024 in the Mathematical Physics Colloquium, Department of Mathematics, Tübingen University.
• Typicality reasoning in quantum statistical mechanics
  This talk I gave on 17 November 2024 at the 29th Biennial Meeting of the Philosophy of Science Association, New Orleans, LA (USA).
• The Ghirardi-Rimini-Weber theory of wave function collapse: principles and recent developments
  This talk I gave on 1 October 2024 at the "19th Colloquium on Mathematics and Foundations of Quantum Theory," organized by Dirk Deckert, Wojciech Dybalski, Felix Finster, and Peter Pickl, Eberhard Karls University Tübingen.
• On the present status of quantum mechanics
  This talk I gave on 5 July 2024 at the Theory Colloquium, Department of Physics, University of Cologne.
• Time evolution of closed macroscopic quantum systems towards thermal equilibrium
  This talk I gave on 14 May 2024 in the One World Seminar (online) of the International Association of Mathematical Physics. Watch video
• On the Measurability of Arrival Times
  This talk I gave on 4 April 2024 in the mathematical physics seminar at Rutgers University and on 7 April 2024 at the Workshop on Foundations of Physics of New York University.
• Philosophical Questions in Statistical Mechanics, Quantum Mechanics, and Mathematics
  This talk I gave on 10 October 2023 in the prep course mathematical physics, Eberhard Karls University Tübingen.
• Canonical Typicality For Other Ensembles Than Micro-Canonical
  This talk I gave on 31 August 2023 at the theoretical physics seminar of KU Leuven, Belgium.
• On the present status of quantum mechanics
  This talk I gave on 7 June 2023 at the physics colloquium of Eberhard Karls University Tübingen.
• GRW theory, a spontaneous collapse theory
  This talk I gave on 18 November 2021 to the Oxford University Quantum Information Society.
• Boltzmann entropy in quantum mechanics
  This talk I gave on 21 September 2021 at the workshop Statistical and Quantum Mechanics at the Gran Sasso Science Institute, L'Aquila, Italy.
• Positron Position Operators
  This talk I gave on 7 July 2021 in the Relativistic Quantum Theory Seminar at Ludwig Maximilians University Munich, organized by Dirk Deckert.
• Multi-Time Version of the Landau-Peierls Formulation of Quantum Electrodynamics
  This talk I gave on 5 February 2021 in the Colloquium "Mathematical Physics Regensburg-Munich." Watch video
• Why Bohmian mechanics allows for different roles of density matrices
  This talk I gave on 24 November 2020 at the Workshop on Density Matrix Realism, University of Birmingham.
• Mini-Course on Interpretations of Quantum Mechanics: video recording, slides of Lecture 1, Lecture 2, Lecture 3, Lecture 4
  These talks I gave on 1st and 2nd October 2020 to graduate students of KSETA at Karlsruhe Institute of Technology.
• Interior-Boundary Conditions for Schrödinger Equations
  This talk I gave on 20 May 2020 in the Mathematical Physics Colloquium, University of Tübingen, and on 15 October 2020 at Rutgers University.
• Relativistic Collapse Theory with Interaction
  This talk I gave on 21 November 2019 in the Mathematical Physics Seminar, University of Tübingen.
• The quantum Zeno paradox
  This talk I gave on 5 September 2019 at the Summer School Paradoxes in Quantum Physics at the John Bell Institute, Hvar, Croatia
• Collapse theories
  This talk I gave on 5 September 2019 at the Summer School Paradoxes in Quantum Physics at the John Bell Institute, Hvar, Croatia
• Introduction: Paradoxes in Quantum Physics
  This talk I gave on 5 September 2019 at the Summer School Paradoxes in Quantum Physics at the John Bell Institute, Hvar, Croatia
• On the Present Status of Quantum Mechanics
  This talk I gave on 11 July 2019 in the Mathematics Colloquium, Johannes Gutenberg University Mainz.
• The Bohmian Approach to the Problems of Cosmological Quantum Fluctuations
  This talk I gave on 3 July 2018 at the 15th Marcel Grossmann Meeting on General Relativity at Università La Sapienza, Rome.
• Probability of Particle Creation and Interior-Boundary Conditions for Fock Space
  This talk I gave on 19 December 2017 at the 118th Statistical Mechanics Conference at Rutgers University.
• Bohmian Trajectories as the Foundation of Quantum Mechanics and Quantum Field Theory
  This talk I gave on 26 October 2017 at the conference Emergent Quantum Mechanics 2017 in London, UK. Watch video.
• Macroscopic and Microscopic Thermal Equilibrium
  This talk I gave on 25 August 2017 in the mathematical physics seminar at Rutgers University.
• Probability Distribution of the Time at Which an Ideal Detector Clicks
  This talk I gave on 28 January 2016 in the mathematical physics seminar at Rutgers University, on 26 April 2016 in the mathematical physics seminar at Princeton University, on 23 September 2016 at the conference "Quantum phenomena: Between the whole and the parts" in Gdansk (Poland), and on 5 July 2017 in the Oberseminar Mathematische Physik at Ludwig-Maximilians University in Munich.
• The Metaphysics of Quantum Mechanics
  This lecture I gave on 20 November 2015 in the Philosophy Department of Brown University, Providence, RI, USA.
• On the Present Status of Quantum Mechanics
  This talk I gave on 24 September 2015 in the Institute of Nuclear Sciences of the Universidad Nacional Autonoma de Mexico, Mexico City.
• The Problem of Boltzmann Brains and How Bohmian Mechanics Helps Solving It
  This talk I gave on 13 August 2015 in the mathematical physics seminar at Eberhard-Karls University in Tübingen, Germany.
• Bohmian Mechanics as the Foundation of Quantum Mechanics
  This talk I gave on 6 March 2015 in the physics colloquium at Tufts University.
• The Notion of Primitive Ontology in the Foundations of Quantum Mechanics
  This talk I gave on 6 March 2015 in the philosophy department of Harvard University.
• Novel Type of Hamiltonians Without Ultraviolet Divergence for Quantum Field Theories
  This talk I gave on 16 December 2014 at the 112th Statistical Mechanics Meeting at Rutgers University.
• Cosmological quantum fluctuations from the perspectives of Bohmian mechanics and collapse theories
  This talk I gave on 3 November 2014 at the conference South American Workshop on the Foundations of Quantum Theory and Cosmology in Sao Paulo, Brazil.
• Novel Type of Hamiltonians Without Ultraviolet Divergence for Quantum Field Theories
  This talk I gave on 1 October 2014 at the conference Quantum Mathematical Physics -- A Bridge Between Mathematics and Physics in Regensburg, Germany, and on 9 October 2014 in the Mathematical Physics Seminar at Rutgers University. (The slides are those shown at Rutgers; the slides I showed in Regensburg contained a few minor mistakes, and were organized a little differently.)
• Nonlocality and Relativity in Various Interpretations of Quantum Mechanics
  This lecture I gave on 30 July 2014 at a summer school in Sesto, Italy.
• Multi-Time Wave Functions for Relativistic Quantum Field Theory
  This lecture I gave on 7 November 2013 in the mathematical physics seminar at Rutgers University.
• Some Basic Concepts in the Foundations of Quantum Statistical Mechanics
  This lecture I gave on 23 May 2013 at the University of Genoa, Italy.
• Relativistic Collapse Theories
  This talk I gave on 23 April 2013 at the conference Quantum Theory without Observers III in Bielefeld, Germany. Watch a recording.
• The major disagreement about the definition of thermal equilibrium (and of entropy)
  This talk I gave on 21 February 2013 as a colloquium at the Frankfurt Institute for Advanced Studies.
• Bricmont, Bohm, and Bell
  This talk I gave on 11 April 2012 at the conference in honor of Jean Bricmont on the occasion of his 60th birthday in Brussels (Belgium).
• The cosmological origin of irreversibility
  This talk I gave on 23 February 2012 to the Rutgers Astronomical Society.
• Explanations of the symmetrization postulate
  This talk I gave on 28 June 2011 at the conference Physics, mathematics and philosophy of nature: A conference in honor of Detlef Dürr on the occasion of his 60th birthday at Ludwig-Maximilians University in Munich, Germany.
• The general reason for approach to thermal equilibrium of macroscopic systems
  This talk I gave on 10 May 2011 at the 105th Statistical Mechanics Meeting at Rutgers University.
• The foundations of quantum mechanics and the limitations of human beings
  This talk I gave on 21 February 2011 in the faculty research perspectives seminar in the Rutgers department of mathematics.
• The Foundations of Quantum Mechanics
  This talk I gave on 3 November 2010 to the society of physics students at Rutgers.
• Generische Lösungen der Dirac-Gleichung, der Transversalitätssatz der Differentialtopologie und das Erreichen der Lichtgeschwindigkeit
  This talk I gave on 17 June 2010 at Eberhard-Karls University in Tübingen (Germany) and on 6 July 2010 at the University of Regensburg (Germany).
• The GRW Flash Theory and the Conway-Kochen "Free Will" Theorem
  This talk I gave on 2 May 2010 at the conference New Directions in the Foundations of Physics, Washington, DC.
• Bohmian mechanics (slides of lecture 1, recording of lecture 1, slides of lecture 2, recording of lecture 2)
  These are two lectures delivered on March 2 and March 4, 2010, to a graduate course taught by Joseph Emerson at the University of Waterloo, Canada.
• Relativistic Realistic Quantum Theory
  This talk I gave on October 24, 2009, at the American Mathematical Society Eastern Section Fall Meeting at Pennsylvania State University.
• On the Free Will Theorem of Conway and Kochen
  This talk I gave on September 24, 2009, in the Mathematical Physics Seminar, Rutgers University.
• Time in Bohmian Mechanics
  This talk I gave on September 28, 2008, at the Perimeter Institute, Canada, on the conference The Clock and The Quantum. Watch a recording.
• Was Temperatur mit Zufall zu tun hat: Kanonische Verteilungen 1866, 1902 und 2006
  This talk was my inaugural lecture as a Privatdozent on June 25, 2008, at the Mathematics Institute of Eberhard-Karls University Tübingen, Germany.
• Gödels Beweis für die Unvollständigkeit formaler Systeme
  This talk I gave as a habilitation colloquium on January 16, 2008, at the Mathematics Institute of Eberhard-Karls University Tübingen, Germany.
• Wave Functions in Thermal Equilibrium: GAP Measures and Canonical Typicality
  This talk I gave on December 5, 2007, at the Statistical Mechanics Seminar at the Department of Physics, Princeton University, and again on December 6, 2007, at the Mathematical Physics Seminar at the Department of Mathematics, Rutgers University.
• The empirical predictions of Bohmian mechanics and GRW theory
  This talk I gave on October 8, 2007, at the session on "Quantum Reality: Ontology, Probability, Relativity" of the "Shellyfest: A conference in honor of Shelly Goldstein on the occasion of his 60th birthday" at Rutgers University.
• Die Punktprozesse der GRW-Theorie des Kollapses der Wellenfunktion
  This talk I gave (in German) on June 29, 2007, at the Mathematics Institute of Eberhard-Karls-Universität Tübingen, Germany.
• Relativistischer Kollaps der quantenmechanischen Wellenfunktion
  This talk I gave (in German) on April 11, 2007, at the Mathematics Institute of Ludwig-Maximilians-Universität München, Germany.
• Incorporating Gravity into Bohmian Mechanics: A New Approach
  This talk I gave on September 19, 2006, at the Perimeter Institute, Waterloo, Canada. Watch a recording of this talk.
• The mathematical structure of quantum reality
  This talk I gave on February 2, 2006, in the Mathematical Physics seminar at Rutgers University, USA.
• Identical Particles in Bohmian Mechanics
  This talk I gave on January 10, 2006, in the Mathematical Physics seminar at Johannes-Gutenberg-Universität, Mainz, Germany.
• The Distribution of the Wave Function for a System in Thermal Equilibrium
  This talk I gave on November 11, 2005, in the Mathematical Physics seminar of the ETH Zürich, Switzerland.
• The Ghirardi-Rimini-Weber Model and Relativity (and QFT)
  This talk I gave on September 8, 2005, at the conference "On the Present Status of Quantum Mechanics" at Mali Losinj, Croatia, organized by A. Bassi, D. Dürr, T. Weber, and N. Zanghì.
• Quantum Theory without Observers and Relativity
  This talk I gave on July 8, 2004, at the summer school "Second School on the Foundations of Physical Theories" in Urbino, Italy, organized by D. Dürr, V. Fano, G.C. Ghirardi, F. Laudisa, and N. Zanghì.
• Mathematical and Physical Foundations of Quantum Theory
  This talk I gave on July 5, 2004, at the summer school "Second School on the Foundations of Physical Theories" in Urbino, Italy, organized by D. Dürr, V. Fano, G.C. Ghirardi, F. Laudisa, and N. Zanghì.
• Bell's Process in Quantum Field Theory: Non-Explosion Proof for a Time-Inhomogeneous Jump Process
  This talk I gave on March 24, 2004, at the "Karlsruher Stochastik-Tage", Germany.
• Two Arrows of Time in Nonlocal Particle Dynamics
  This talk I gave at the conference "The Direction of Time", January 14-19, 2002, Zentrum für Interdisziplinäre Forschung, Bielefeld, Germany.