Upcoming Events

Weekly bulletin D-PHYS

The Institute for Theoretical Physics offers the following seminars:

Next seminars

Lisa Everett (Department of Physics, University of Wisconsin-Madison, USA) - Neutrinos and the Mystery of Mass

The origin of the fermion mass hierarchy is one of the most compelling and mysterious questions for physics beyond the Standard Model. The discovery of neutrino oscillations and the subsequent measurements of the neutrino mass-squared differences and the lepton mixing angles over the past decade or so has reinvigorated the quest to elucidate the underlying physics that resolves this so-called "flavor puzzle" of the Standard Model. In this talk, I will give an overview of the theoretical approaches to the flavor puzzle, with a focus on the ways in which the neutrino mass and mixing parameters have challenged and extended the basic paradigms for understanding the origin of fermion masses in the Standard Model.
ETH Science City HPV G 4 - Wed 17.12.2014 16:15

Michal Lipson (Dep. of Electrical and Computer Engineering, Cornell University, USA) - Silicon Photonics: The Optical Spice Rack

Silicon is evolving as a versatile photonic platform with multiple functionalities that can be seamlessly integrated. The tool box is rich starting from the ability to guide and amplify multiple wavelength sources at GHz bandwidths, to optomechanical MEMS and opto-fluidics devices. As an example of novel device capabilities, I will discuss the generation of strong optical forces in these ultra small light confining structures. We have recently shown that optical forces can enable controllable, static manipulation of photonic structures, an important step towards enabling recently proposed functionalities for optomechanical devices, such as self-aligning and optical corralling behaviour. These advances should enable future micro-optomechanical systems (MOMS) with novel and distinct functionalities.
ETH Science City HPV G 4 - Wed 10.12.2014 16:15

Charalampos Anastasiou (Department of Physics, ETH Zurich) - Precision Higgs Physics

The discovery of the Higgs boson signaled the beginning of a new era of precision in Higgs physics. In the coming decade(s), the experiments of the Large Hadron Collider will perform a plethora of very accurate measurements of phenomena associated with the new particle. These measurements will help us to answer fundamental questions in particle physics. To what extend is the Higgs physics responsible for the mass of the known elementary particles? Is the Higgs boson a portal to dark matter? How sensitive are the Higgs boson interactions to the laws of physics at very high energies? This presentation, emphasises the role pf precision in the theoretical simulations for answering such questions. It gives a flavour of the fascinating physics and the advanced mathematical methods which have been developed for this purpose. It also gives a personal assessment for the future prospects and opportunities in precision Higgs physics.
ETH Science City HPV G 4 - Wed 3.12.2014 16:15

Jacqueline Bloch (Laboratoire de Photonique et Nanostructures, Marcoussis, France) - Quantum Fluid of Light in Microstructured Semiconductor Microcavities

Semiconductor microcavities provide a unique platform to explore the physics of non-linear quantum fluids of light. In this talk I will present our experiments on the propagation and manipulation of quantum fluids in photonic circuits. I will show how, using periodic or a-periodic lattices, we can simulate complex Hamiltonians. Perspectives in terms of quantum simulations will be discussed.
ETH Science City HPV G 4 - Wed 26.11.2014 16:15

Rocky Kolb (Department of Astronomy and Astrophysics, University of Chicago, USA) - The Decade of the WIMP

For over eight decades astronomers have observed that the bulk of the matter in the present universe is dark. The most attractive possibility for the nature of the dark matter is that it is a new species of elementary particle known as a WIMP (a Weakly Interacting Massive Particle). After a discussion of how WIMPs might fit into models of particle physics, I will review the current situation with respect to discovery of the WIMP by direct detection, indirect detection, and collider production. Rapid advances in the field should enable us to answer by the end of the decade whether our universe is dominated by WIMPs, and possibly solve the 80-year old riddle of the nature of dark matter.
ETH Science City HPV G 4 - Wed 19.11.2014 16:15



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