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Personal profile

Research interests

My research program is concerned with analytic and probabilistic questions in mathematical physics and I place particular emphasis on topics in random matrix theory which display intimate connections to mathematical statistical mechanics and the field of integrable differential equations. The application of asymptotics methods, special functions, probability theory, orthogonal polynomials and potential theory is central to this work. Current areas of interest include (see below for PhD projects in those areas):

1) Random matrix theory and the theory of random processes: In a nutshell, my work in this field is concerned with the

  • analysis of gap, distribution and correlation functions in invariant random matrix models and thinned versions thereof
  • description of extreme values in non-Hermitian random matrix models
  • identification of universality classes in Hermitian one- or multi-matrix models
  • spectral analysis of integrable integral operators
  • development of Hamiltonian approaches to the analysis of gap asymptotics

2) Exactly solvable lattice models in statistical mechanics: I have derived results for

  • the six-vertex model with domain wall boundary conditions: computation of the free energy and subleading terms for the partition function and analysis of phase transitions
  • the 2D Ising model: elementary derivation of the scaling function constant in the short distance expansion of the tau-function associated with 2-point functions

3) Integrable differential equations: Most of my work in this field is concerned with Painleve special functions, focusing on the

  • unified asymptotic description of certain real-valued Painleve transcendents
  • introduction of Schur/orthogonal polynomial methods to the analysis of rational Painleve functions
  • development of nonlinear steepest descent techniques for singular Painleve transcendents
  • total Painleve integral evaluations

Recent preprints as well as published work can be found on arXiv and MathSciNet as well as ORCID. Feel free to contact me if you are interested in one of the PhD projects below, I am happy to discuss specifics, prerequisites and learning outcomes.

Current and future work My current efforts lie at the forefront of research in mathematical statistical mechanics of highly correlated systems with focus on three major themes: exactly solvable lattice models, quantum gases and random matrices. The long-term goal is to unveil ground-breaking original connections between those themes and resolve a series of long-standing conjectures about the system’s underlying analytic and asymptotic behaviors. Here are two concrete PhD projects in this area

A) Statistical properties of quantum gases at positive temperature 

B) Topological expansions for (near) random matrix models

Education/Academic qualification

Purdue University

1 Aug 200931 Jul 2013

Award Date: 4 May 2013

University of Ulm

1 Aug 200731 Jul 2009

Award Date: 1 May 2009

University of Ulm

1 May 200531 Jul 2007

Award Date: 2 Jul 2007

University of Ulm

1 May 200531 Jul 2007

Award Date: 2 Jul 2007


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