# Members

Group Leader | room | phone +49 (0)89 2180- | ||

Dr. D.-A. Deckert | deckert@math.lmu.de | 305 | -4442 | |

Doctoral Students | ||||

Vera Hartenstein | hartenstein@math.lmu.de | 302 | -4620 | |

Felix Hänle | haenle@math.lmu.de | 303 | -4606 | |

Lukas Nickel | nickel@math.lmu.de | 303 | -4606 | |

Markus Nöth | noeth@math.lmu.de | |||

Martin Oelker | oelker@math.lmu.de | 445 | -4170 | |

Robin Schlenga | schlenga@math.lmu.de | 304 | -4609 | |

Master Students | ||||

Julia Kraus | fixed-term.Julia.Kraus2@de.bosch.com | -- | -- | |

Leopold Kellers | leopold.kellers@campus.lmu.de | 217 | -4479 | |

Alumni Master Students | ||||

Christian Bild | ||||

Felix Hänle | ||||

Hannes Hermann |

# Profiles

**Dr. Dirk-André Deckert**studied physics at the LMU Munich and as a DAAD fellow at the University of Queensland in Brisbane, Australia. After his doctoral studies, funded by the BayEFG initiative, today Elite Network of Bavaria, he was awarded the doctoral degree in mathematics at the LMU Munich in 2010. His doctoral thesis "Electrodynamic Absorber Theory" comprises a mathematical and physical investigation of radiation reaction and electron-positron pair creation. The main fields of his research are Foundations of Physics, Quantum Electrodynamics, Many-Body Theory, Quantum Chemistry, Functional Differential Equations and Numerical Analysis. For one year Dr. Deckert conducted research as a post-doc fellow of the DAAD at the University of California Davis where he was later appointed as Arthur J Krener Assistant Professor for three years before commencing his work in the Elite Network of Bavaria in Munich.

**Vera Hartenstein, MSc,**studied mathematics at Ulm University, Technical University Munich and as an exchange student at University Paris Dauphine. Soon her main focus was on stochastic and the mathematical modeling of natural hazards. She gained practical experience in several fields, including aerospace, consulting, and insurance. In 2011 she obtained her bachelor degree from the University of Ulm and in 2013 she completed her master's degree at the Technical University of Munich. Led by her strong interest in the foundations of probabilities and its application in physics, Vera Hartenstein joined the "Mathematical foundations of physics" research group at the LMU Munich Since 2014 she has been working as a doctoral student in the International Junior Research Group "Interaction between light and matter" in the Elite Network of Bavaria, investigating the solution theory of classical electrodynamics for point charges.

**Felix Hänle, MSc,**studied physics at the LMU Munich and obtained his Bachelor degree in summer 2013. Afterwards, he enrolled in the graduate program "Theoretical and Mathematical Physics" of the Elite Network of Bavaria at the LMU Munich. Within this program he studied abroad at the University of British Columbia in Vancouver for one semester. His main focus was on quantum field theory and second quantized fields in particular. In his master’s thesis he investigated a class of particle-preserving quantum field models as part of the International Junior Research Group "Interaction between light and matter" in the Elite Network of Bavaria. Since October 2015 he has been working as a doctoral student on resonances and ultraviolet properties in persistent models of quantum electrodynamics in this group. Besides, he is a teaching assistant at the Mathematical Institute of the LMU Munich.

**Lukas Nickel, MSc,**studied physics and mathematics at the LMU Munich and finished the master program "Theoretical and Mathematical Physics" of the Elite Network of Bavaria in September 2015. Driven by a profound interest in the mathematical and conceptual foundations of physics, he wrote his master thesis about relativistic interactions in quantum theories, where interacting models were formulated with the help of multi-time wave functions. Since 2014, he also gives lectures about physics and mathematics for the general public at the Münchner Volkshochschule. As a doctoral student in the International Junior Research Group "Interaction between light and matter", he now continues the study of physical and mathematical aspects of the multi-time formalism for relativistic quantum mechanics.

**Markus Nöth, MSc,**studied physics and mathematics at the LMU Munich and received his bachelor degree in the summer of 2013. He pursued his passion for the foundations of physics by joining the master program "Theoretical and Mathematical Physics" of the Elite Network of Bavaria. In the course of this program he studied abroad for one semester in Japan at the Japan Advanced Institute of Science and Technology. Markus attained his master degree in January of 2016, his master thesis sheds new light on the renowned "Unruh effect" by introducing parallels between quantum and classical field theory. He joined the International Junior Research Group "Interaction between light and matter" as a PhD student in February of 2016. As a main project of research he investigates the existence of a mathematically rigorous description of quantum field theory of external fields, while additionally working as a teaching assistant.

**Martin Oelker, MSc,**studied Physics and Philosophy at the LMU Munich. He finished his studies 2014 with his Master thesis in Mathematical Physics with the title "On the self-adjointness of the Dirac operator for two interacting particles". It treats a mathematical problem in the larger framework of foundations of quantum electrodynamics, implementing ideas from direct-interaction theories. Since 2015 he is part of the International Junior Research Group "Interaction between light and matter" in the Elite Network of Bavaria as doctoral student where he continues his investigation of the Dirac operator for many interacting particles and its implications on P.A.M. Dirac's hole theory that describes electron-positron pair creation.

**Robin Schlenga, MSc,**Robin Schlenga received his Master's degree in the elite graduate program "Theoretical and Mathematical Physics" of the Elite Network Bavaria at LMU Munich in 2015, supported by a full scholarship of the "Studienstiftung des deutschen Volkes". His Master's thesis was dedicated to the attempt of finding a divergence-free description of the Lamb Shift. Robin's strong interest in fundamental physics was candled by the supervisor of his Master's thesis, Prof. Detlef Dürr, by introducing Robin to Bohmian Mechanics. During his undergraduate studies, Robin spent a year at Lund's University in Sweden and also took courses in computer science as well as history and philosophy. Motivated by questions regarding the foundations of physics, Robin investigates the mathematical properties of his model description of the Lamb Shift while also trying to find a more general understanding of nature at a relativistic quantum-mechanical level as a PhD student in the International Junior Research Group "Interaction between Light and Matter" of Dr. Dirk-André Deckert.

**Leopold Kellers, MSc,**enrolled at the University of Münster in 2010. Aided by a Deutschlandstipendium scholarship he did his undergraduate studies with an intermittent year at the University of Strathclyde in Glasgow. After receiving a degree in physics and another one in computer science at the end of 2013, he decided to attend a few more courses from different fields of mathematics before applying for the Elite Network of Bavaria's graduate program "Theoretical and Mathematical Physics" at LMU and TU Munich. Driven by his interest in efficient methods which solve difficult problems in an unusual way, he joined the International Junior Research Group in spring of 2016. Since then he has been working on trajectory methods to obtain numerical solutions of the time dependent Schrödinger equation from the Many Interacting Worlds paradigm. Besides his thesis he is also part of the mathematics department's computing centre staff.

**Julia Kraus, BSc,**is completing her Masters in Mathematics at the LMU in Munich after earning her first university degree at the LMU in secondary school education in Mathematics, Latin and English in 2015. She is currently working on her Masters Thesis for Bosch GmbH in Abstatt under the guidance of Dr. Dirk-Andre Deckert. The title of her thesis is „Analysis and Development of Machine Learning Algorithms for Automotive Sensor Data“. It examines methods of machine based learning based on sensor data to enable recognition of friction values and conditions of the road surface. Her research is part of an overall project focussed on developing a sensor which optically examines the road surface to enable timely reactions by an autonomous motor vehicle to changing conditions.