Physics & even more physics
Hi and welcome to my website! I'm a passionate theoretical physicist being curious about intriguing quantum and gravitational phenomena such as entanglement and the expansion of the universe. Below, your may check out my research interests and publications. In case you're interested, I'm always happy to discuss fundamental physics problems and to collaborate on exciting new projects!
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Position
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Research Areas
Quantum Information
Information theory has enlightened our understanding of quantum phenomena. However, quantum entropies suffer from divergences in field theories and a high computational complexity. I'm interested in finding more universal and accessible descriptions, for instance using relative and classical entropies.
Quantum Fields
Not only three out of four forces and Bose-Einstein condensation can be described within field theories, but also entanglement, uncertainty, thermalization and quanta in curved space. I'm curious about entropic uncertainty for quantum fields, understanding entanglement and thermalization and quantum field simulators.
Gravity
Spacetime is geometry. I'm especially fascinated by the idea of analog gravity, that is, the simulation of gravitational phenomena and their interplay with quantum phenomena using table-top experiments. I'm working on analog models realizable via cold atom platforms to test cosmology and Hawking radiation.
Cold atoms
Over the last two decades, cold atom experiments have proven to serve as ideals testbeds for investigating all the phenomena I'm interested in. I regularly use such systems as prime models and enjoy the insightful collaborations with experimentalists.
Phenomena
Entanglement
How can entanglement be characterized and certified efficiently, also for continuous-variable and quantum many-body systems? Which role does entanglement play in field theories and for thermalization? How does entanglement spread in and connect spacetime?
Uncertainty
What is the strongest and most general formulation of the uncertainty principle? How can uncertainty relations be devised for field theories? How can uncertainty relations help to formulate entanglement witnesses and constrain quantum entropies?
Thermalization
How can equilibrium and non-equilibrium situations be described in field theories? How does the mesoscopic local equilibrium arise from microscopic degrees of freedom and entanglement? When and how do isolated quantum systems thermalize locally?
Quanta in curved space
Which entropic descriptions capture the observer-dependence of particles and entanglement accurately? How can quantum phenomena in curved spacetime such as Hawking radiation and cosmological particle production be accessed by quantum field simulators?