ERIK MCLEAN / UNSPLASH

Physikalisches Kolloquium

Freitag, 11. Juli 2025 17:00 Uhr  Advancing Quantum Information Processing with Superconducting Circuits

Prof. Dr. Stefan Filipp, Walther-Meißner-Institut und TU München Quantum computers have the potential to solve complex problems efficiently. However, to unleash their full potential, complex quantum systems have to be manufactured, manipulated and measured with unprecedented accuracy and precision. In this presentation I will focus on superconducting qubits as one of the most promising platforms for quantum computing. I will illustrate the building blocks of a quantum processor using a system based on 17 transmon-type qubits, which we are currently operating in our laboratory. In this architecture tunable coupling elements are harnessed to generate multi-qubit operations between two or more qubits and to efficiently create many-body entanglement. Moreover, I will address alternative superconducting qubits with improved protection against environmental influences.

Teilchenkolloquium

The LHCb Phase-2b upgrade

Prof. Dr. Ulrich Uwer, Physikalisches Institut, Universität Heidelberg

Astronomisches Kolloquium

Dienstag, 15. Juli 2025 16:30 Uhr  From mass transfer to stripped stars

Pablo Marchant, Ghent University Binary interactions shape the evolution of the most massive stars, leading to significant deviations from the evolutionary pathways possible in single star evolution. These processes impact the universe at large scales and result in high energy events such as peculiar supernovae and gravitational wave sources. To understand these outcomes, it is important to assess binary evolution in early stages ranging from pre-interaction, roche-lobe overflow and post-interaction phases. I will discuss the current progress in our understanding of mass-transferring binaries, covering the impact of this process on the donor star (with the possible production of a stripped star), as well as the response of its companion. Of particular importance in recent years is the identification of bloated stripped stars caught immediately after interaction which provides a snapshot of the end-states of mass transfer, and I will discuss how their properties constrain orbital evolution and the efficiency of mass transfer. I will also emphasize that many of the uncertain processes in massive binary star evolution can also be assessed through the study of intermediate mass systems, for which the physics in early evolutionary phases does not differ significantly. To arrange a visit with the speaker during the visit, please contact their host: Jaime Villaseñor (MPIA)

Zentrum für Quantendynamik Kolloquium

Mittwoch, 23. Juli 2025 16:30 Uhr  tba

Prof. Zoran Hadzibabic , Department of Physics, University of Cambridge