Seminars, Colloquia & Meetings

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Please note: The entries in this list appear currently in reverse chronological order.

Aug 7, 2017

D-PHYS - Beginn Prüfungssession


- ETH Zürich, Hönggerberg - Mon 7.08.2017 8:00

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Aug 1, 2017

D-PHYS - Schweizer Nationalfeiertag / Swiss National Day


- ETH Zürich, Hönggerberg - Tue 1.08.2017 8:00-18:00

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Jul 21, 2017

D-PHYS - Promotionsfeier / Doctorate awards ceremony


- ETH Zürich, Hönggerberg HPH G 1 - Fri 21.07.2017 17:00

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Jun 16, 2017

D-PHYS - Masterfeier / Graduation ceremony


- ETH Zürich, Zentrum HG F 30 - Fri 16.06.2017 17:00-19:00

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Jun 5, 2017

D-PHYS - Pfingstmontag / Whit Monday


- ETH Zürich, Hönggerberg - Mon 5.06.2017 8:00-18:00

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Jun 2, 2017

D-PHYS - Ende Frühjahrssemester 2017 / End of Spring Semester 2017


- ETH Zürich, Hönggerberg - Fri 2.06.2017 18:00

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Jun 2, 2017

D-PHYS (members only) - Departements- und Professorenkonferenz


- ETH Zürich, Hönggerberg HPH G 1 - Fri 2.06.2017 14:00-18:00

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Jun 2, 2017

D-PHYS (members only) - PK-Lunch


- ETH Zürich, Hönggerberg HIT E 51 - Fri 2.06.2017 12:00-13:30

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May 31, 2017

Nathalie Picque (Max Planck Institute of Quantum Optics, Garching, Germany) - Laser frequency combs for molecular spectroscopy

Laser frequency combs are coherent sources with a spectrum consisting of (up to) several hundreds thousand sharp and evenly spaced spectral lines. A mode-locked femtosecond laser with a regular pulse train can, for instance, give rise to a comb spectrum of modes with a spacing precisely equal to the pulse repetition frequency. Almost two decades ago, laser frequency combs have revolutionized the way of measuring the frequency of light. Today, frequency combs are finding applications far beyond the original purpose. With selected examples, I will illustrate how they are becoming powerful instruments for broadband molecular sensing and how they create new opportunities for multiplex nonlinear spectroscopy. I will in particular discuss the technique of dual-comb spectroscopy. I will show that such novel applications call for a new generation of laser combs, with specifications largely different from those required for frequency metrology.
- ETH Zürich, Hönggerberg HPF G 6 - Wed 31.05.2017 16:45-18:00

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May 31, 2017

Nicola Serra (Department of Physics, University of Zurich) - Flavour Anomalies and the Quest for New Physics

Flavour physics has historically paved the way to important discoveries in particle physics. Results over the last decade allowed to set stringent constraints on possible scenarios of physics beyond the Standard Model. However, recent measurements of B-meson decays, by the LHCb experiment and the B-factories, show discrepancies with respect to Standard Model predictions that seem to form a coherent pattern. Are we detecting cracks in the Standard Model? I will review the status of the so-called flavour anomalies and I’ll discuss possible interpretations and future prospects.
- ETH Zürich, Hönggerberg HPV G 4 - Wed 31.05.2017 16:15

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May 31, 2017

Elli Pomoni (DESY, Deutschland) - 2D CFT for class Sk theories


- ETH Zürich, Hönggerberg HIT E 41.1 - Wed 31.05.2017 14:25

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May 31, 2017

Zeynep Talip (PSI, Villigen) - Determination of the long lived radionuclides from proton-irradiated metal targets


- ETH Zürich, Hönggerberg HPK D 24 - Wed 31.05.2017 11:00

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May 29, 2017

Oded Zilberberg (ETH Zürich) - Electronic and Photonic quantum engineered systems


- ETH Zürich, Zentrum HG F 30 - Mon 29.05.2017 17:15

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May 29, 2017

Alexander A. Penin (Department of Physics, University of Alberta, Edmonton, Canada) - LIGO Event on the Back of an Envelope

The first direct detection of the gravitational waves by LIGO opens the era of "gravitational astronomy". Precise identification of the cosmological source of the LIGO event has been made possible by years of the development of numerical algorithms for the description of strong gravity phenomena. One, however, does not need the power of a supercomputer to figure out what kind of catastrophic event generated the signal observed by LIGO. In this talk I will show how a simple back-of-an envelope analysis reconstructs it with an amazingly good accuracy.
- ETH Zürich, Hönggerberg HIT H 51 - Mon 29.05.2017 14:45-16:45

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May 25, 2017

D-PHYS - Auffahrt / Ascension Day


- ETH Zürich, Hönggerberg - Thu 25.05.2017 8:00-18:00

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May 24, 2017

Stefan W. Hell (Max Planck Institute for Biophysical Chemistry, Göttingen, Germany) - Pauli Lectures - Optical Nanoscopy: Concepts and Recent Advances


- ETH Zürich, Hönggerberg HCI G 3 - Wed 24.05.2017 15:30

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May 24, 2017

Shuoming An (Tsinghua University, Beijing, China) - Quantum Fluctuation Relations and the shortcut to adiabaticity with the trapped ion

The Quantum fluctuation relations is regarded as the more accurate version of the second law of thermodynamics in the quantum regime. To test the quantum Jarzynski equality, the two points measurement of the quantum work is required. We utilize the phonon projective measurement to realize the directive measurement of quantum work and test the quantum Jarzynski equality with the trapped ion. When realizing the phonon projective measurement, the shortcut to adiabaticity (STA) for the two level system is applied. The STA will reduce the long duration required by the adiabatic process to arbitrarily short one. Later different STA protocols for the motional states are realized and compared. Among all different protocols, the counter-diabatic driving protocol stands out for its robustness without more payment of work.
- ETH Zürich, Hönggerberg HPF G 6 - Wed 24.05.2017 15:00

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May 24, 2017

Prem Kumar (University of Swansea, UK) - Holographic flows and thermodynamics of Polyakov loop impurities


- ETH Zürich, Hönggerberg HIT E 41.1 - Wed 24.05.2017 14:00

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May 24, 2017

Faruk Krecinic (Fritz Haber Institut der Max Planck Gesellschaft, Berlin, Germany) - Visualizing nanoscale ultrafast charge dynamics using low-energy electrons


- UZH Irchel Y 36 J 33 - Wed 24.05.2017 11:15

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May 24, 2017

Angelo Nucciotti (Università degli Studi di Milano-Bicocca, Italy) - HOLMES: measuring the electron neutrino mass with the electron capture decay of 16A3Ho

The detection of neutrino oscillations has proved that neu trinos are massive particles but the assessment of their absolute mass scale is still an oustanding challenge in tod ay particle physics and cosmology. Beta or electron capture spectrum end-point study is curr ently the only experimental method which can provide a model independent measurement of the absolute scale of ne utrino mass. Within this framework the European Research Council has funded HOLMES, a new experiment to dire ctly measure the neutrino mass. HOLMES will perform a calorimetric measurement of the energy releas ed in the electron capture decay of the artificial isotope 163Ho. This measurement was originally proposed in 1982 b y A. De Rujula and M. Lusignoli, but only in the last decade the technological progress in detectors developme nt allowed to design a sensitive experiment. In a calorimetric measurement the energy released in the de cay process is entirely contained into the detector, except for the fraction taken away by the neutrino. This app roach eliminates both the problematics connected to the use of an external source and the systematic uncertainti es arising from decays on excited final states. The most suitable detectors for this type of measurement are l ow temperature thermal detectors, where all the energy released into an absorber is converted into a temper ature increase that can be measured by a sensitive thermometer directly coupled with the absorber. HOLMES will deploy a large array of low temperature microca lorimeters with implanted 163Ho nuclei. The resulting neutrino mass statistical sensitivity will be as low as 0.4 eV, thereby making HOLMES an important step forward in the direct neutrino mass measurement with a calo rimetric approach as an alternative to spectrometry. HOLMES will also establish the potential of this approach to extend the sensitivity down to 0.1 eV and lower. In order to reach a sub-eV sensitivity in its optimal config uration HOLMES will collect about 3x10^13 decays with an instrumental energy resolution of about 1 eV FWHM and a ti me resolution of about 1 μs. For a total measuring time of 3 years, this requires a total 163Ho activity of about 300 kBq. Deploying an array of 1000 detectors, each pixel must contain an 163Ho activity of about 300 Bq. The gradual array deployment is expected to start in late 2017. In this seminar I will first give a broad and general overvi ew on the neutrino mass and the experimental approaches for its direct measurement. Then I will outlin e the HOLMES project with its technical challenges, and its status and perspectives. In particular I will present t he status of the HOLMES activities concerning the 163Ho isotope production and purification, the detector array d evelopment and testing, the detector read-out installation, and the setting up of the system for isotope em bedding.
- PSI Area West WHGA/001 - Wed 24.05.2017 11:15

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May 24, 2017

Johannes Lachner (University of Vienna, Austria) - Put a spotlight on 36Cl- and 26AlO- : isobar suppression of cooled ions with photons


- ETH Zürich, Hönggerberg HPK D 24 - Wed 24.05.2017 11:00

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May 23, 2017

Stefan W. Hell (Max Planck Institute for Biophysical Chemistry, Göttingen, Germany) - Pauli Lectures - Nanoscopy with Focused Light


- ETH Zürich, Zentrum HG F 30 - Tue 23.05.2017 17:15

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May 23, 2017

Lavinia Heisenberg (ETH Institute for Theoretical Studies) - Our Mysterious Dark Universe

After giving an introduction into modern cosmology and the incredible progresses it witnessed, I will summarise the theoretical and observational challenges that we are facing in the standard model of cosmology. I will then introduce different ideas proposed in the literature to tackle these problems within modified gravity theories, among which I will pay special attention to massive gravity, scalar-tensor theories and generalised Proca theories on curved space-time.
- ETH Zürich, Zentrum CLV B 4 - Tue 23.05.2017 13:30

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23.05.2017
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