Seminare und Vorträge 2024
Übersicht über alle zukünftigen IPP-Seminare, -Kolloquien und Vorträge

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The present-day expansion rate of the Universe, or Hubble constant (H0), is a fundamental parameter of cosmology. H0 sets the age of the Universe, its critical density, and sets the absolute scale for a wide array of cosmological observables that probe the laws of physics on extremely large scales and across time. However, the last decade has brought about an increasing disagreement between the values of H0 measured directly in today's Universe and the values of H0 determined indirectly from observations of the very early Universe. This 5-6 sigma disagreement has come to be known by the term "Hubble constant tension" and has become one of the most pressing issues to resolve in observational cosmology, with potential implications ranging from measurement systematics to altering the particle physics sector or even general relativity. Following a brief summary of the current situation in the "tension", I will first describe the observational setup that achieves the most accurate direct H0 measurement using an extragalactic distance ladder in which pulsating stars anchor type-Ia supernovae to geometrically measured distances. In turn, I will present the key developments that have more than halved the uncertainty on H0 over the last 8 years. Further major improvements towards a direct 1% measurement of H0 are coming within reach thanks to state-of-the-art observational facilities, such as the James Webb Space Telescope, the ELT, and future data releases of the ESA Gaia mission. With further improved systematics and accuracy, the distance ladder will put precision cosmology to the test, with potentially far-reaching consequences. [mehr]

In tokamaks, the three hydrogen isotopes have a different impact on physical processes in high temperature plasmas. They play a crucial role in everything related to the main ion mass itself and particularly the electron to ion mass ratio: collisions, gyro-radii, fast-ion slowing down, edge stability and more. The implications for how the main ion mass influences the plasma are discussed: from L- to H-mode, in the core and at the edge, from hydrogen and deuterium to deuterium-tritium and pure tritium plasmas. The most significant impact on confinement is often by indirect mechanisms, like the fast-ion content or the core-edge coupling. When taking these into account, observations can be explained which were previously not understood. [mehr]

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explore your career options [mehr]

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For the Career Dialogue we invite people with different backgrounds who will initially tell about themselves, their career or their networks and will then answer your questions and engage in a dialogue with you. The purpose of the Career Dialogue is to provide insight into different career paths, to bring you in contact with people outside IPP and to enhance our networks in all directions - science, industry, entrepreneurship, science management. [mehr]

learn about types of feedback and recognise them in typical work situations [mehr]

Workshop for Career Orientation In this workshop you will discover your individual talents and strengths and above all, experience the benefits of focusing on strengths (and not on weakness). Furthermore, you will learn how to communicate your core strengths in an authentic, self-confident way. [mehr]

learn about types of feedback and recognise them in typical work situations [mehr]

Presentation of the skills and experience appropriate to the target occupation. [mehr]

For the Career Dialogue we invite people with different backgrounds who will initially tell about themselves, their career or their networks and will then answer your questions and engage in a dialogue with you. The purpose of the Career Dialogue is to provide insight into different career paths, to bring you in contact with people outside IPP and to enhance our networks in all directions - science, industry, entrepreneurship, science management. [mehr]

Plagiarism and falsification of data by researchers have been in the news repeatedly over recent years. The internet allows knowledge to become a mobile and easily re-packaged good. Even though deliberate academic misconduct is not representative, good scientific practice presents a series of difficult questions, and nagging problems for researchers and accidental breaches can happen. [mehr]