Webrelaunch 2020

AG Mathematical Physics

Seminar Mathematische Physik

This is the webpage for the weekly Mathematical Physics Seminar: AG Hundertmark.
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Next Talk: 08.11.21, Time: 12:00 (Local Time)

Speaker: Giulia Basti

Title: Three-Body Hamiltonian with Regularized Zero-Range Interactions in Dimension Three

Abstract: We consider a system of three identical bosons interacting through zero- range interactions appropriately regularized by an effective three-body force to avoid the fall to the center phenomenon emerging in the standard TMS Hamiltonian, known as Thomas effect. We prove that the Hamiltonian describing the system is self-adjoint and bounded from below. Furthermore, we show that it can be obtained as the norm resolvent limit of approximating Hamiltonians with rescaled non local interactions, also called separable potentials, and with a suitably renormalized coupling constant.
Based on a joint work with C. Cacciapuoti, D. Finco and A. Teta

Invitations Links for Zoom will be sent shortly before the talk.
If there are any problems in attending the talk, please contact Marvin Schulz (marvin.schulz@kit.edu)

Previous Talks 2021
25.01.21, Speaker: Dirk Hundertmark
Thema: Quantum Systems at the Brink: Helium
01.02.21, Speaker: Ioannis Anapolitanos
Thema: Convergence towards the Hartree dynamics in Topology of moments of the position
08.02.21, Speaker: Ioannis Anapolitanos
Thema: Convergence towards the Hartree dynamics in Topology of moments of the position Part II
15.02.21, Speaker: Marco Olivieri
22.02.21, Speaker: Lucrezia Cossetti
Thema: Absence of eigenvalues of Schrödinger, Dirac and Pauli Hamiltonians via the method of multipliers
29.03.21, Speaker: Leonid Chaichenets
Higher order NLS with anisotropic dispersion and modulation spaces: a global existence and scattering result
26.04.21, Speaker: Ioannis Anapolitanos:
Diskussionsseminar zur Lehre in der Mathematik
03.05.21, Speaker: Simon Barth (Uni Stuttgart)
Title: Absence of the Efimov effect in Dimension One and Two
10.05.21, Speaker: Friedrich Klaus
Title: An Energy for the NLS Tooth Problem
31.05.21, Speaker: Davide Fermi (Dipartimento di Matematica 'Guido Castelnuovo','La Sapienza' Università di Roma)
Title: An axiomatic zeta-function approach to Casimir physics
06.07.21, Speaker: Dirk Hundertmark
Title: How to get upper and lower bounds for eigenfunctions of the Schröodinger equation: Sub- and super-solution comparison theorems via the IMS localization formula
12.07.21, Speaker: Konstantin Merz, TU Braunschweig
Title: Weak coupling limit for Schrödinger-type operators with degenerate kinetic energy for a large class of potentials
19.07.21, Speaker: Thierry Laurens, University of California (UCLA)
Title: KdV with exotic spatial asymptotics
26.07.21, Esteban Cárdenas, The University of Texas at Austin
Title: Tracer Particles Interacting with a Boson Field
9.08.21, Michael Hott, The University of Texas at Austin
Title: On quantum Boltzmann fluctuation dynamics at the presence of a Bose-Einstein condensate