Conférences  >  Physique  >  Physique des hautes énergies, des particules et des champs  >  Allemagne

Max Planck Institute for the Physics of Complex Systems, Dresden

We will explore post-selection protocols in quantum measurements, emphasizing real time control and the role of exceptional points. Establishing a bridge between non-Hermitian and Lindbladian dynamics, we aim at a deeper insight into manipulated dissipative systems, aiming for dynamical error correction techniques.

Dissipative dynamics; Non-Hermitian Hamiltonians; Post-selection; Exceptional points; Quantum control; Quantum measurement; Quantum steering; Lindbladian dynamics; Quantum jumps; Weak values

MIAPbP - Munich Institute for Astro-, Particle and BioPhysics

This workshop aims to explore both the similarities and complementarities between dark matter and the neutrino sector in the context of direct detection experiments with a particular focus on electronic excitations.

Wilhelm and Else Heraeus-Foundation

Fundamental symmetry breaking is important to understanding the formation of our universe including baryogenesis and the homochirality of living organisms. It plays an important role in finding a more complete theory than the Standard Model of particle physics. In recent years, molecules have become a leading platform to search for such symmetry breakings through precision metrology as they exhibit enhanced sensitivity and in particular, their many degrees of freedom can be leveraged to isolate violations of fundamental symmetries from the background. However, in recent years, the molecular precision spectroscopy community has become focused on simultaneous parity and time reversal symmetry violation, overlooking the equal importance of time-reversal symmetry even, parity violating effects. For example, despite its prediction in the 1960s, the parity violating energy difference between mirror-images of chiral molecules is yet to be observed, which is crucial for our understanding of molecular chirality. Only recently several individual works rediscovered the unique opportunities of molecular parity violation, indicating even its undiscovered potential in revealing new physics. Moreover, recent advancements in molecular quantum control and molecular theory may bring the detection of molecular parity violation now in reach for the first time. This workshop will use the momentum of these recent advances to refocus the attention on molecular parity violation experiments and foster collaboration in the field.

Physique atomique et moléculaire,    Physique de la matière condensée et des matériaux

MIAPbP - Munich Institute for Astro-, Particle and BioPhysics

Charged leptons have been key to the current understanding of physics at the shortest length scales and are the focus of precise tests of the Standard Model. In the coming years several experiments with increased sensitivity in charged lepton physics are expected to deliver exciting results. This workshop will offer the possibility for theoretical and experimental physicists to discuss the status and prospects of this field of research.

The workshop has three main topics: tau lepton precision physics (weeks 1+2), charged lepton flavour violation (weeks 2+3) and muon precision physics (weeks 3+4).

Wilhelm and Else Heraeus-Foundation

The study of flavor physics probes the structure of the Standard Model (SM) through the interactions and transitions among different generations of quarks and leptons. Despite its success, the SM cannot explain key features of our Universe, such as the dominance of matter over antimatter or the nature of dark matter. Semileptonic decays of beauty quarks play a central role in testing the SM and searching for new physics. They provide access to the Cabibbo–Kobayashi–Maskawa (CKM) matrix elements Vcb and Vub and enable stringent tests of lepton flavor universality (LFU). However, persistent discrepancies between inclusive and exclusive determinations of Vcb and Vub, as well as tensions in LFU observables such as R(D/D*), highlight unresolved challenges in our understanding of quark mixing and heavy-quark dynamics. The Belle II and LHCb experiments are now entering an era of percent-level precision, placing new demands on theoretical inputs, including lattice QCD form factors, heavy-quark expansions, and the modeling of excited charm contributions. Progress requires close coordination between experiment and theory to reduce hadronic and systematic uncertainties and to develop consistent global interpretations. The 856. WE-Heraeus-Seminar “Challenges in Semileptonic Decays” will gather leading experts to assess the current status of Vcb and Vub determinations, review LFU measurements, identify strategies to reduce uncertainties, and foster synergies between Belle II, LHCb, lattice QCD, and effective field theory communities toward a coherent roadmap for the next decade.

Institute for Theoretical Physics, Johannes Gutenberg University

One of the most important tools to quantitatively describe families of two-dimensional conformal field theories are gauged linear sigma models (GLSMs). As such they offer a powerful and indispensable method to study string compactifications and their phase structures from a worldsheet perspective. Over the years, the scope of GLSMs has developed much further, namely not only as a methodology to study string theories, but also to address fundamental questions of (supersymmetric) quantum field theories, in particular in two, three and four dimensions. That is to say, GLSMs have provided key insights into numerous aspects of mathematical physics, offering a bridge to various fields in mathematics such as enumerative and algebraic geometry and category theory. The aim of this workshop is to bring together experts from physics and mathematics in order to address topical research questions and to identify new applications for GLSMs.

Physique mathématique,    Astronomie, astrophysique et cosmologie

Wilhelm and Else Heraeus-Foundation

Dark matter and dark energy dominate the mass and energy density in the universe but their composition is still unknown. There are various experimental efforts to solve this “elephant-in-the-room” problem. Some of the promising techniques involve areas of physics that are not widely known to workers in the field and are rarely discussed in “dark-sector” conferences and schools. An example is searches for axionlike particles with a ferromagnetic phase in liquid 3He. We will attempt to remedy this and several other similar gaps between seemingly disjunct research fields with this school for junior scientists, primarily, PhD students and postdocs on “Dark Intersections” ‒ the subdisciplines in physics that are used for the dark-sector and gravitational-wave research but are rarely studied in this context.

Astronomie, astrophysique et cosmologie,    Cours et événements pour étudiants en physique