Working Seminar

Working Seminar: Mathematische Physik

Aktuelles Programm ab Sommersemester 2020

Programm der vergangenen Semester:

WS 2023/2024

Working Seminar: Mathematische Physik

WS 2023/2024

Mittwochs, 10:15 Uhr, M 101 - Freitags, 14:30 Uhr, M 103

in der Fakultät für Mathematik

Die Seminare finden im Hybridformat statt, bei Interesse Anmeldung über: mail@causal-fermion-system.com

Datum	Vortragende/r	Thema
Mittwoch, 18.10.23	Prof. Felix Finster	“Causal fermion systems in low dimensions and the appearance of a time direction”
Mittwoch, 25.10.23 M 102	Stefan Suhr, Universität Bochum	“The theorem of Lusternik & Schnirelmann for reversible Finsler metrics,” in Oberseminar Global Analysis, organized by Bernd Ammann
Freitag, 27.10.23	Prof. Felix Finster	“Causal fermion systems as an effective collapse theory”
Mittwoch, 08.11.23	Dr. Claudio Paganini, Universität Regensburg	“Gravitation as a statistical theory on the light cone”
Freitag, 10.11.23	Prof. Felix Finster	“The causal action principle for discrete spacetimes”
Mittwoch, 15.11.23	Marco van den Beld Serrano, Universität Regensburg	“Probing baryogenesis in specific spacetimes I”
Mittwoch, 22.11.23	Williams Dhelonga, Université de Namur	“Weak measurement in the context of the Einstein-Dirac equation”
Mittwoch, 29.11.23	Simone Murro, Università di Genova	“Hadamard states for Maxwell theory by pseudodifferential calculus”
Mittwoch, 06.12.23	Marco van den Beld Serrano, Universität Regensburg	"Probing baryogenesis in specific spacetimes II"
Freitag, 08.12.23	Sami Abdallah, Universität Regensburg	“Hyperbolicity conditions for a nonlocal Dirac equation”
Mittwoch, 13.12.23	Niky Kamran, McGill University, Montréal	"Local Hölder Stability in the inverse Steklov and Calderón problems for radial Schrödinger operators and quantified resonances"
Mittwoch, 20.12.23	Markus Fröb, Universität Leipzig	"Relative entropy in de Sitter spacetime"
Mittwoch, 10.01.24	Magdalena Lottner, Universität Regensburg	“The fermionic entanglement entropy of spatial regions in Schwarzschild and Minkowski spacetime”
Freitag, 12.01.24	Ana Alonso Serrano, Albert Einstein Institut Golm	“Thermodynamics of spacetime: From Unimodular Gravity to quantum gravity phenomenology”
Mittwoch, 17.01.24	Alberto Enciso, ICMAT Madrid, España	“The fearful symmetry of quantum billiards” (takes place online)
Freitag, 19.01.24	Wolfgang Spitzer, Fernuniversität Hagen 10:00, M104	“Logarithmically enhanced area-laws for fermions in vanishing magnetic fields in dimension two”
Mittwoch, 24.01.24	Ko Sanders, FAU Erlangen	tba, in Oberseminar Global Analysis, organized by Bernd Ammann
Freitag, 26.01.24	Maik Reddiger, Hochschule Anhalt, Köthen	“Towards a Probabilistic Foundation of Relativistic Quantum Theory: The One-Body Born Rule in Curved Spacetime”
Mittwoch, 31.01.24	tba
Freitag, 02.02.24	tba
Mittwoch, 07.02.24	tba
Freitag, 09.02.24	tba

WS 2019/2020

Working Seminar: Mathematische Physik

WS 2019/2020 Donnerstags 8-10, M 102, in der Fakultät für Mathematik

Datum	Vortragende/r	Thema
Dienstag, 01.10.19, 10:15 M 104	Johannes Kleiner, ITP Hannover	Stochastic and Non-Linear Correction Terms for the Linearized Field Equations of Causal Fermion Systems
17.10.19, 08:30	Felix Finster	A nonlinear surface layer integral and applications
24.10.19	Christoph Langer	Homogeneous Causal Fermion Systems: Existence of Minimizers
31.10.19	Maximilian Jokel	Homogeneous Regularizations of the Fermionic Projector
07.11.19	Bernd Döllinger	Lorentzian spectral geometry in 4 dimensions
14.11.19	Marco Oppio	Local von Neumann algebras in CFS I
21.11.19	Marco Oppio	Local von Neumann algebras in CFS II
28.11.19	Johannes Wurm	Mass and Area of (Non-Static) Causal Fermion Systems I
05.12.19	Johannes Wurm	Mass and Area of (Non-Static) Causal Fermion Systems II
12.12.19	Magdalena Lottner	An integral operator in a static CFS I
19.12.19	Christian Beck, LMU München	Consistency Requirements for Quantum Measurement in Minkowski Space-Time
09.01.20	Magdalena Lottner	An integral operator in a static CFS II
16.01.20	Prof. Valter Moretti, Universität Trento	An operational construction of the sum of two non-commuting observables in quantum theory and related constructions
23.01.20	Felix Finster	Retrieving the causal structure from the algebra of local events
30.01.20	Maximilian Jokel	Integral operators describing perturbations of the regularized Dirac sea of higher angular momentum
06.02.20	Christoph Langer	Minimizers of causal variational principles in the $sigma$-locally compact setting
20.02.20, im M 103	Prof. Niky Kamran, McGill University Montreal, Canada	Stability results on the inverse Steklov problem for Riemannian warped products

SS 2019

Working Seminar: Mathematische Physik

SS 2019 Donnerstags 8-10, M 102, in der Fakultät für Mathematik

Datum	Vortragende/r	Thema
02.05.19	Felix Finster	Homogeneous perturbations of Dirac systems
09.05.19	Maximilian Jokel	Families of parametrized null geodesics in Schwarzschild space-time
16.05.19	Marco Oppio	Regularized Minkowski vacuum: smoothness and completeness I
23.05.19	Marco Oppio	Regularized Minkowski vacuum: smoothness and completeness II
13.06.19	Andreas Platzer	The Concept of a Mass for Asymptotically Flat CFS
27.06.19	Andreas Platzer	The Concept of a Mass for Asymptotically Flat CFS II
04.07.19	Nicola Pinamonti, University of Genova	pAQFT on Quantum Spacetime
11.07.19	Christoph Langer	Topological Properties of Causal Fermion Systems
18.07.19	Andrea Schätzl	Perturbation theory for critical minimizers of causal variational principles
25.07.19	José M. Isidro Universidad Politécnica de Valencia	Padmanabhan’s approach to quantum gravity

WS 2018/2019

Working Seminar: Mathematische Physik

WS 2018/2019 Mittwochs 8-10, M 103, in der Fakultät für Mathematik

Datum	Vortragende/r	Thema
Donnerstag, 18.10.18, 10-12 Uhr, M 101	Felix Finster	The causal structure of linearized fields for causal variational principles
31.10.18	Felix Finster	The causal structure of linearized fields for causal variational principles II
07.11.18	Felix Finster	Jets and linearized fields in Minkowsi space
Donnerstag, 08.11.18, 10-12 Uhr, M 101	Marco Oppio	Jets describing particle creation
14.11.18	Felix Finster	The dynamics of the regularization in causal fermion systems
Donnerstag, 15.11.18, 10-12 Uhr, M 101	Claudio Paganini, PhD, Monash University, Melbourne	How the particle-anti particle asymmetry mechanism from CFS could answer some of the open questions in cosmology
Donnerstag, 22.11.18, 10-12 Uhr, M 101	Christoph Langer	Existence theory for causal variational principles in the non-compact setting
Donnerstag, 29.11.18, 10-12 Uhr, M 101	Andreas Platzer	The mass of an asymptotically flat static causal fermion system I
05.12.18	Andreas Platzer	The mass of an asymptotically flat static causal fermion system II
Donnerstag, 06.12.18, 10-12 Uhr, M 101	Erik Curiel, LMU München	Two Paths to the Einstein Field Equation from Horizon Thermodynamics
12.12.18	Philipp Zimmermann	tba
Donnerstag, 13.12.18, 10-12 Uhr, M 101	Niky Kamran, McGill University, Montreal	The anisotropic Calderon problem for warped product metrics of singular type: the borderline between uniqueness and invisibility
Donnerstag, 20.12.18, 10-12 Uhr, M 101	Albert Much, PhD, UNAM Morelia, Mexico	Self-adjointness and Complex Structures in Klein-Gordon
10.01.19	Saeed Zafari	Riemannian fermion systems of spin dimension one
16.01.19	Felix Finster	A positive mass theorem for static causal fermion systems I
Donnerstag, 17.01.19, 10-12 Uhr, M 101	Felix Finster	A positive mass theorem for static causal fermion systems II
Freitag, 18.02.19, 14-19 Uhr, TU München	Michal Wrochna (Grenoble), Daniela Cadamuro (Leipzig), Lukas Nickel (München)	Oberseminar "Mathematical Physics", Regensburg-München
23.01.19	Mustafa Akman	Numerical analysis of a causal fermion system on a lattice
Donnerstag, 24.01.19, 10-12 Uhr, M 101	Felix Finster	Fragmentation of the universal measure and microscopic mixing I
30.01.19	Felix Finster	Fragmentation of the universal measure and microscopic mixing II
Donnerstag, 31.01.19, 10-12 Uhr, M 101	Felix Finster	Fragmentation of the universal measure and microscopic mixing III
06.02.19	Magdalena Lottner	Berry phase and Chern numbers
13.02.19, 8:30 Uhr	Felix Finster	Minimizing the causal action for homogeneous causal fermion systems

SS 2018

Working Seminar: Mathematische Physik

SS 2018 Dienstags 10-12 Uhr, M 101, in der Fakultät für Mathematik

Datum	Vortragende/r	Thema
Donnerstag, 12.04.18	Felix Finster	Critical points of the causal action in cosmological situations
Donnerstag, 26.04.18	Christoph Langer	Topological properties of causal fermion systems in finite dimension I
Donnerstag, 03.05.18	Christoph Langer	Topological properties of causal fermion systems in finite dimension II
08.05.18	Saeed Zafari	Geometric structures of causal fermion systems of spin dimension one I
Donnerstag, 24.05.18	Robert Jonsson, Universität Kopenhagen	Relativistic quantum information with Unruh-DeWitt detectors
29.05.18	Saeed Zafari	Geometric structures of causal fermion systems of spin dimension one II
Donnerstag, 07.06.18	Mustafa Akman	The Hydrogenatom and the SO(3)-Group
12.06.18	Maximilian Jokel	The Geometric Structure of Minimizers of Causal Variational Principles: Preliminaries and the Construction of Physical Causal Fermion Systems
19.06.18	Maximilian Jokel	The Geometric Structure of Minimizers of Causal Variational Principles: Construction of a Causal Fermion System for the Schwarzschild Geometry
Donnerstag, 21.06.18	Claudio Dappiaggi University of Padua	Fundamental solutions for the wave operator on static Lorentzian manifolds with timelike boundary
Donnerstag, 28.06.18	Felix Finster	Energy estimates for causal variational principles I
03.07.18	Felix Finster	Energy estimates for causal variational principles II
10.07.18	Prof. Jose Isidro, Universidad Politecnica de Valencia	On the contact geometry in classical thermodynamics

WS 2017/2018

Working Seminar: Mathematische Physik

WS 2017/2018 Donnerstags 10-12 Uhr, M 201, in der Fakultät für Mathematik

Datum	Vortragender/r	Thema
19.10.17	Christian Röken	Neue Koordinaten für die Kerr-Geometrie
26.10.17	Felix Finster	Fragmentation of the universal measure and positive functionals in space-time
02.11.17	Simone Murro, Universität Freiburg	On the initial-boundary value problem for symmetric positive system
Dienstag, 14.11.17, M 101	Felix Finster	A complex structure on the jets and unitary time evolution
23.11.17	Felix Finster	Fermionic and bosonic jets
30.11.17	Mustafa Akman	Fermionsysteme in diskreter Raumzeit II
21.12.17	Maximilian Jokel	A Time Direction Functional for Causal Fermion Systems
11.01.18	Felix Finster	The holomorphic perturbation expansion for critical points of causal variational principles
18.01.18	Felix Finster	Basic concepts behind causal fermion systems I
Freitag, 19.01.18, M 102	Meinulf Göckeler, Andreas Platzer	Kolloquium Mathematische Physik Regensburg-München
25.01.18	Felix Finster	Basic concepts behind causal fermion systems II
Dienstag, 13.03.18, M 103	Igor Khavkine, Czech Academy of Sciences	Renormalization of Wick polynomials of locally covariant bosonic vector valued fields

SS 2017

Working Seminar: Mathematische Physik

SS 2017 Donnerstags 10-12 Uhr, M 201, in der Fakultät für Mathematik

Datum	Vortragender/r	Thema
27.04.17	Felix Finster	Varying the Einstein-Hilbert action with dynamical gravitational coupling
04.05.17	Andreas Platzer	Scaling of Causal Fermion Systems: Reducing free parameters
11.05.17	Guillaume Idelon-Riton	The complex WKB method for the Dirac operator in Schwarzschild-Anti-de Sitter spacetime with application to resonances I
18.05.17	Guillaume Idelon-Riton	The complex WKB method for the Dirac operator in Schwarzschild-Anti-de Sitter spacetime with application to resonances II
01.06.17		kein Vortrag
Dienstag, 13.06.17, M 225	Felix Finster	The index of the fermionic signature operator
29.06.17	Mustafa Akman	Numerische Untersuchung der kausalen Wirkung auf $R imes S^3$
13.07.17	Johannes Kleiner	Correction Terms for Field Equations from Causal Fermion Systems
20.07.17	Felix Finster	Surface layer integrals of codimension two
Dienstag,18.07.17, 14 Uhr c.t., M 101	Prof. Jose Isidro, Universidad Politecnica de Valencia	Boltzmann entropy of a Newtonian universe
27.07.17	Claudio Dappiaggi, Università di Pavia	Quantizing massive scalar fields in anti-de Sitter spacetime

WS 2016/2017

Working Seminar: Mathematische Physik

WS 2016/2017 Donnerstags 10-12 Uhr, M 201, in der Fakultät für Mathematik

Datum	Vortragende/r	Thema
20.10.16	Felix Finster	A class of conserved surface layer integrals
27.10.16	Guillaume Idelon-Riton	Asymptotic completeness of the Dirac equation in the Schwarzschild-AdS black hole
03.11.16	Andreas Platzer	The ADM mass and the isoperimetric mass
10.11.16	Guillaume Idelon-Riton	Lower bounds on local energy decay for Dirac fields in the Schwarzschild-AdS black hole and resonances
17.11.16	Felix Finster	Computation of a class of surface layer integrals in the continuum limit
24.11.16	Christian Röken	The Proca equation in Kerr geometry
29.11.16, 12.15 Uhr, M104	Nicola Pinamonti	Stability of thermal states in perturbative algebraic quantum field theory
08.12.16	Bernadette Lessel	Quantum dynamics and shapes on Wasserstein space
15.12.16	Mustafa Akman	Representation Theory and Dirac-Sphere for deriving a causal fermion system
22.12.16	Johannes Kleiner	Naked Singularities and the Penrose Inequality I
12.01.17	Johannes Kleiner	Naked Singularities and the Penrose inequality II
19.01.17	Felix Finster	An effective Lagrangian describing the sectorial projection

SS 2016

Working Seminar: Mathematische Physik

SS 2016 Donnerstags 10-12 Uhr, M 201, in der Fakultät für Mathematik

Datum	Vortragende/r	Thema
21.04.16	Felix Finster	The DGC tensor
28.04.16	Andreas Platzer	Equality of the isoperimetric mass and the ADM mass
12.05.16	Christian Röken	Integral representation of the massive Dirac propagator in Kerr geometry in horizon-penetrating coordinates
19.05.16	Olaf Müller	Particular foliations of spacetimes
02.06.16	Mustafa Akman, Universität Augsburg	Gromov's Non-Squeezing-Theorem und die Verbindung zur Quantenmechanik: Eine numerische Analyse
09.06.16	Simone Murro	A functional analytic construction for quasi-free states on CCR algebras
16.06.16	Felix Finster	The symplectic form of a causal fermion system
23.06.16 9.00 Uhr	Felix Finster	Linear stability of rotating black holes
30.06.16	Johannes Kleiner	Towards a Connection between Loop Quantum Gravity and Causal Fermion Systems
06.07.16 LMU-München	Christian Hainzl, Felix Hänle, Simone Murro	Oberseminar Mathematische Physik, München-Regensburg
07.07.16		kein Vortrag
14.07.16	Christoph Langer	Homogeneous causal fermion systems

WS 2015/2016

Working Seminar: Mathematische Physik

WS 2015/2016 Donnerstags 10-12 Uhr, M 201, in der Fakultät für Mathematik

Datum	Vortragende/r	Thema
22.10.15	Olaf Müller	Universal spinors, universal Dirac operator and Einstein-Dirac theory as a variational theory
29.10.15	Felix Finster	The dynamcis of the regularization and dark matter I
05.11.15	Felix Finster	The dynamcis of the regularization and dark matter II
12.11.15	Yunlong Zang	Harmonic coordinates for Kerr metric and its application to astrophysics
19.11.15	Simone Murro	A new class of Fermionic Projectors: Møller operator and the weak mass oscillation property
26.11.15	Olaf Müller	tba
03.12.15	Felix Finster	Microscopic mixing and the emergence of quantum field theory
10.12.15	Christian Röken	Self-adjointness of the Dirac Hamiltonian for a class of non-uniformly elliptic boundary value problems I
17.12.15 15:30 Uhr im M 104	Niky Kamran, McGill University	Non-uniqueness results for the anisotropic Calderon problem with data measured on disjoint sets
07.01.16	Felix Finster	A Liouville-type theorem for the dynamical gravitational coupling function
14.01.16	Christian Röken	Self-adjointness of the Dirac Hamiltonian for a class of non-uniformly elliptic boundary value problems II
21.01.16	Simone Murro	Introduction to KMS states
04.02.16	Johannes Kleiner	The Dynamics of Causal Fermion Systems: A Toy-Model
18.02.16 im M102	Felix Finster	Dynamical gravitational coupling in the spherically symmetric collapse of a st