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Consensus and confusion in cosmology
- uploaded September 27, 2024
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Quantum Sensors for High Energy Physics
Aaron S. Chou, DESY Theory Workshop 2024-
40:31 duration
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26 views
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Line intensity mapping
Marc Kamionkowski, DESY Theory Workshop 2024-
37:01 duration
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15 views
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Stochastic gravitational wave backgrounds at LISA
Valerie Domcke, DESY Theory Workshop 2024-
42:08 duration
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19 views
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Collider physics & the relativistic 2-body problem
Rafael Porto, DESY Theory Workshop 2024-
40:56 duration
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15 views
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Consensus and confusion in cosmology
Prof. Dr. Marc Kamionkowski (Johns Hopkins University), Heinrich Hertz Lecture 2024. The past quarter century has been a period of rapid progress in our understanding of the origin and evolution of the Universe. We now have a simple mathematical model that can account for the gross features of our Universe as well as detailed...-
01:13:21 duration
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160 views
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Axion Theory
Prateek Agrawal, DESY Theory Workshop 2024-
41:07 duration
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20 views
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Axion Strings
Malte Buschmann, DESY Theory Workshop 2024-
39:18 duration
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12 views
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GW Waveforms for BH and new physics
Eugene Lim, DESY Theory Workshop 2024-
41:22 duration
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11 views
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Pulsar Timing Arrays on the verge of detection
Nataliya K. Porayko, Theorie Workshop 2024-
43:08 duration
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16 views
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New results in axion inflation
Marco Peloso, Theorie Workshop 2024-
39:20 duration
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17 views
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Searching for Primordial Gravitational Waves with the CMB
Raphael Flauger, Theorie Workshop 2024-
37:03 duration
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18 views
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Jim Penner-Hahn (University of Michigan) at FXE
September 2022-
01:09 duration
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64 views
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Oksana Plekan (FERMI at the Elettra Sincrotrone Trieste) at SQS
September 2022-
01:25 duration
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74 views
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Lisa Randolph (University of Siegen) at HED
September 2022-
00:26 duration
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51 views
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Eilidh McClain (University of Michigan) at FXE
September 2022-
00:46 duration
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28 views
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Filipe Maia (Uppsala University) at SPB/SFX
September 2022-
00:31 duration
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23 views
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Christian Gutt (University of Siegen) at MID
September 2022-
00:19 duration
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24 views
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Markus Gühr (University of Potsdam) at SQS
September 2022-
01:25 duration
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81 views
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Lingen Huang (Helmholtz-Zentrum Dresden-Rossendorf, HZDR) at HED
September 2022-
01:03 duration
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33 views
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Roseanne Sension (University of Michigan) at FXE
September 2022-
00:38 duration
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29 views
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Maddalena Bin (Stockholm University) at MID
September 2022-
00:31 duration
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36 views
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Patrick Adams (RMIT University Melbourne) at SPB/SFX
September 2022-
00:34 duration
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18 views
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Aniruddha Deb (University of Michigan) at FXE
September 2022-
00:45 duration
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26 views
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Caterina Vozzi (CNR Milan) at SQS
September 2022-
01:03 duration
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88 views
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Ryan Lamb (University of Michigan) at FXE
September 2022-
00:41 duration
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28 views
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Further insights into the experiment station HED by leading scientist Dr. Ulf Zastrau
Length 05:24 min.-
05:24 duration
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148 views
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European XFEL in a nutshell
The 3.4 km long European XFEL generates extremely intense X-ray flashes used by researchers from all over the world to map atomic details of viruses, film chemical reactions, and study processes in the interior of planets.-
05:06 duration
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15976 views
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European XFEL im Überblick
Der 3,4 Kilometer lange European XFEL erzeugt extrem intensive Röntgenlaserblitze, die Forschende aus der ganzen Welt nutzen, um atomare Details von Viren zu erkennen, chemische Reaktionen zu filmen und Vorgänge wie im Inneren von Planeten zu untersuchen.-
05:19 duration
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3076 views
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Spectroscopy and coherent scattering on catalysts for C-H bonds of saturated alkanes at the European XFEL
C-H bonds of saturated alkanes are inert and hence hard to break. Catalysis with 4d and 5d transition metal complexes in solution provides ways for C-H bond cleavage, whereas earth-abundant 3d metal catalysts have not been discovered to date. Raphael M. Jay from Uppsala University in Sweden and his team investigates how to make 3d metal complexes reactive for C-H activation. The...-
02:41 duration
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21 views
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Investigation of ultrafast electron solvation dynamics in aqueous systems at European XFEL
During ionisation, electrons are knocked out of an atom. What remains are "holes". Both the ejected electrons and the holes can trigger chemical reactions in an extremely short time. This is particularly true in aqueous systems. Using X-ray absorption spectroscopy (XAS), the scientists from Linda Young's team at Argonne National Laboratory, USA, are investigating the ultrafast dynamics of...-
04:31 duration
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330 views
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Time-dependent measurements of carbon nanoparticle inception at European XFEL
Nanoparticles containing carbon have extraordinary chemical and electronic properties. However, their formation from the gas phase is still poorly understood. The team led by Andrea Comandini from the Centre national de la recherche scientifique (CNRS) in Orléans, France, is investigating the formation of carbonaceous nanoparticles at different temperatures and pressures at the MID experiment...-
05:33 duration
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249 views
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Towards Quantum Vacuum Birefringence using an X-ray Dark-field Technique at European XFEL
According to quantum field theory, the vacuum is not really "empty". For example, it can interact with strong electromagnetic fields. This extremely weak effect should also be visible in the scattering of X-ray photons in the optical field of strong laser fields - and be about two orders of magnitude stronger. Physicists call this light-by-light scattering. As part of the HIBEF collaboration...-
03:06 duration
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363 views
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Lifetime determination of key astrophysical transitions in highly charged ions at European XFEL
Measuring the lifetime of excited states of highly charged neon ions using X-rays at the SQS (Small Quantum Systems) experiment station of the European XFEL in Schenefeld near Hamburg. Dr. Chintan Shah from the NASA Goddard Space Flight Centre, USA, uses the so-called pump-and-probe method in the soft X-ray regime. The novel two-color mode of the SASE3 undulator at the European XFEL...-
05:17 duration
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188 views
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Single-particle X-ray imaging of phycobilisome light harvesting antenna at high repetition rate
Cyanobacteria are also capable of photosynthesis. However, the chemical processes involved are very difficult to study in a near-natural environment. At the SPB/SFX experiment station of the European XFEL in Schenefeld near Hamburg, the team led by Patrick Konold from Uppsala University, Sweden, is trying to gain an unprecedented insight into the light-harvesting mechanism of...-
04:01 duration
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168 views
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Femtosecond-XES characterization of spin-states and structures of transient iron(III)-oxyl species
Compounds of iron with oxygen are relevant for many processes - from the transport of oxygen in the blood to the corrosion of iron. However, many aspects of iron-oxygen chemistry are not yet fully understood. It is generally believed that the magnetic orientations of the electrons involved - the so-called spin state - also play an important role, e.g. in catalytic processes. Using...-
04:07 duration
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307 views
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The hRIXS spectrometer at the SCS instrument explained by Dr. Benjamin van Kuiken
The SCS instrument (Spectroscopy and Coherent Scattering) enables scientists to unravel the electronic and structural properties of complex materials, molecules, and nanostructures. Examples of experiments carried out with the SCS instrument include investigating ultrafast magnetization processes on the nanoscale, the real-time observation of chemical reactions in liquids, and understanding...-
05:07 duration
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38 views
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Das FXE-Instrument von European XFEL
Mit der FXE-Experimentierstation am European XFEL lassen sich auf atomarer Ebene extrem schnelle chemische Prozesse untersuchen. Ultrakurze Röntgenlaserpulse ermöglichen es den Forschern, die schnellen Veränderungen von Molekülen im Verlauf von Reaktionen im Detail zu beobachten. Die Proben sind in einem Flüssigkeitsstrahl gelöst. Sie werden mit einem in der Animation rot dargestellten...-
01:22 duration
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43 views
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The FXE instrument at the European XFEL
The FXE instrument at the European XFEL is designed to analyse chemical processes that are otherwise too fast to observe. Short pulses of laser-like X-rays, which can pick up atomic details, give scientists deeper insight into the rapid changes in molecules during an ongoing reaction. Samples are dissolved in a liquid jet. The molecules are energised with an optical laser, shown in red, which...-
01:22 duration
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33 views
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Das MID-Instrument bei European XFEL
Am MID Instrument des European XFEL können Forschende die Struktur und Dynamik von Materialien mit molekularer bis atomarer Auflösung untersuchen. Hierfür fokussieren sie Röntgenpulse auf das zu untersuchende Material, von wo aus das Röntgenlicht in verschiedene Richtungen gestreut wird. Die Anordnung der Atome im Material führt zu einem charakteristischen Streumuster, das von einem...-
02:03 duration
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39 views
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The MID instrument at the European XFEL
At the MID instrument of European XFEL, researchers can investigate the structure and dynamics of materials with molecular to atomic resolution. To do this, they focus X-ray pulses on the material to be studied from where the X-rays are scattered in different directions. The arrangement of the atoms in the material leads to a characteristic scattering pattern, which is recorded by a detector....-
02:03 duration
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29 views
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Tunnelflug // Tunnel flight 2017
Tunnel flight through the X-Ray Laser Facility European XFEL Tunnelflug durch die Röntgenlaseranlage European XFEL-
06:10 duration
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876 views
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Virenforschung am European XFEL
In diesem primär an Oberstufenschüler:innen gerichteten Kurzfilm wird die Virenforschung am European XFEL thematisiert. Anhand der am European XFEL stattgefundenen Coronavirus-Forschung werden die verschiedenen Schritte bei der Erforschung von Viren erklärt und veranschaulicht.-
09:07 duration
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304 views
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Virus research at European XFEL
This short movie, which is primarily aimed at senior high school students, focuses on virus research at European XFEL. The various steps involved in researching viruses are explained and illustrated using the coronavirus research carried out at European XFEL.-
09:07 duration
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216 views
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Funktionsweise des SPB-Instruments mit Flüssigkeitsstrahlen
Erklärung der Funktionsweise und Datenerfassung des Instruments SPB mit Flüssigkeitsstrahlen, das zur Erforschung biologischer Proben und Prozesse am European XFEL eingesetzt wird.-
00:59 duration
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28 views
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Functionality of the SPB instrument with liquid jets
Explanation of the functionality and data acquisition of the SPB instrument with liquid jets, which is used for research into biological samples and processes at the European XFEL.-
00:59 duration
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40 views
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European XFEL Pump-Probe Lasers: The Making (long version)
This time-lapse video shows the 11-month installation of one of the pump-probe laser systems at European XFEL. Pump-probe lasers are highly specialised pulsed optical lasers. They use high repetition rates, high energy, and ultrashort infrared pulses to stimulate a sample. This pulse is followed by an X-ray laser pulse that captures an image of the sample. Many images are put together to make...-
05:20 duration
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240 views
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0 likes
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European XFEL Pump-Probe Lasers: The Making
This time-lapse video shows the 11-month installation of one of the pump-probe laser systems at European XFEL. Pump-probe lasers are highly specialised pulsed optical lasers. They use high repetition rates, high energy, and ultrashort infrared pulses to stimulate a sample. This pulse is followed by an X-ray laser pulse that captures an image of the sample. Many images are put together to make...-
03:39 duration
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40 views
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0 likes
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Detectors at European XFEL / Detektoren bei European XFEL
Detector scientist Dr. Monica Turcato explains the detectors at all six experiment stations at European XFEL (with German subtitles) Detektorwissenschaftlerin Dr. Monica Turcato erklärt die Detektoren an allen sechs Experimentierstationen des European XFEL (englische Sprache mit mit deutschen Untertiteln)-
10:42 duration
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884 views
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Research at the European XFEL on twisted bilayer MoS2 and gold nanoparticles on Titanium oxide
Kai Rossnagel from Kiel University and Deutsches Elektronen-Synchrotron DESY in Hamburg conducted quantum materials research at the new SXP instrument (Soft X-ray Port). The scientific focus of the experiment is on two model interface systems: twisted bilayer MoS₂ and gold nanoparticles on Titanium oxide (TiO₂). He and his team investigated the effect of destructive interference...-
04:14 duration
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38 views
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Research at the European XFEL: Small quantum systems research on core-hole state dynamics in oxygen
Jan-Erik B. I. Rubensson from Uppsala University in Sweden conducted the first extreme ultraviolet (XUV) spectrometer experiment at the Small Quantum Systems instrument (SQS) at the European XFEL. The new 1D imaging X-ray spectrometer was used to investigate how non-linear processes can influence the core-hole state dynamics observed in the resonant inelastic X-ray scattering (RIXS)...-
07:42 duration
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122 views
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