Freitag, 17. April 2026 17:00 Uhr tba
Prof. Vitor Cardoso, Niels Bohr Institute, University of Copenhagen
Prof. Vitor Cardoso, Niels Bohr Institute, University of Copenhagen
Dr. Daniel Schulte, CERN/Genf Muon Collider Study Status Dr. Daniel Schulte CERN, Genf A novel muon collider has a unique potential to provide high-energy lepton collisions at high luminosity and combines the advantages of proton and electron colliders. The International Muon Collider Collaboration (IMCC) is designing such a facility and addressing the challenges. The presentation will summarise the status of the design and the R&D progress. To make the collider a reality an ambitious R&D needs to be carried out that has important synergies with other fields of society ranging from medical applications to fusion reactors.
Esra Bulbul, MPE Galaxy clusters, representing the peaks in the cosmic density field, serve as an independent and powerful tool for investigating the evolution of cosmic structures. The strategic identification of these clusters through multi-wavelength surveys is essential for advancing our understanding of gravitational theory, general relativity, and cosmological models. Launched in 2019 aboard the Spectrum-RG mission, eROSITA marked a major milestone in astronomy by enabling the construction of the largest pure sample of galaxy clusters and groups detected through their hot intra-cluster medium in the X-ray band. In this talk, I will present results from my group’s work on deriving cosmological constraints from the evolution of the cluster mass function, combining eROSITA data with optical surveys such as DESI Legacy, DES, HSC, and KIDS. These parameters are constrained at a percentage level through the evolution of the cluster mass function, representing a significant leap forward. Beyond cosmology, a central focus of my research is on AGN feedback and its role in shaping galaxy and structure formation. Leveraging the statistical power of the eROSITA sample, we have detected warm baryons within cosmic filaments and cluster outskirts, offering a first glimpse of baryons in the faint, diffuse cosmic web. To arrange a visit with the speaker during the visit, please contact their host: Matteo Maturi
Prof. Doerte Blume, Department of Physics and Astronomy, University of Oklahoma Dynamics of open quantum systems Prof. Doerte Blume Homer L. Dodge Department of Physics and Astronomy & Center for Quantum Research and Technology, The University of Oklahoma, Norman, Oklahoma, USA Reliable theoretical modeling of the dynamics of open quantum systems, such as an externally driven quantum system, is essential for the realization of quantum devices, quantum simulators, and quantum computers. This talk discusses the dynamics of open quantum systems from several different viewpoints using master equations of the Lindblad form. Examples include the treatment of the p-wave contact of single-component Fermi gases, dissipation engineering in few-level systems, and the development of a dynamic invariant- or Lie-algebra-based master equation framework in which higherorder terms can be accounted for systematically. Bio info: Doerte Blume holds a Georg Lynn Cross Research Professorship at The University of Oklahoma (OU). She received her Ph.D. in physics in 1998 from the Georg-August University, Goettingen, Germany. After postdoctoral work at JILA/University of Colorado in Boulder, she took up a faculty position in the Department of Physics and Astronomy at Washington State University (WSU) in the beautiful inland Northwest. In the summer of 2017, Doerte relocated to OU. Doerte is a Fellow of the American Physical Society, and a recipient of a Bush Lectureship at OU and a Meyer Distinguished Professorship at WSU. Her research accomplishments at WSU were also recognized through the College of Arts and Sciences Mid-Career Achievement in Scholarship/Creative Activities Award and the College of Sciences Young Faculty Performance Award.
