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Consensus and confusion in cosmology

uploaded September 27, 2024

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Investigation of ultrafast electronic structure dynamics in correlated oxides at European XFEL

Mark P. M. Dean from Brookhaven National Laboratory (BNL) and Sophia TenHuisen from Harvard University, USA, are researching the cuprate La2-xSrxCuO4 at the SCS (Spectroscopy & Coherent Scattering) instrument of European XFEL. The different ways in which the oxygen and the copper electronic states hybridize is responsible for the diverse properties of this material that range from novel...
- 02:44 duration
- 15 views
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Investigation of superionic states in group-III oxides at European XFEL

Jaromír Chalupský from the Czech Academy of Sciences is researching a theoretically predicted superionic state in oxides such as Al2O3, Ga2O3 or In2O3 at the High Energy Density (HED) instrument. In these materials, the metallic atoms remain as a rigid lattice under extreme conditions, while the oxygen atoms can behave like a liquid. The substances thus can behave as an insulator, a...
- 03:14 duration
- 53 views
- 0 likes
Study of ultrafast chiral dynamics of the Vitamin D precursor Ergosterol at European XFEL

Caterina Vozzi from the Consiglio Nazionale delle Ricerche (CNR), Milano, Italy, is researching the steroid ergosterol (C28H44O) at the Small Quantum Systems (SQS) instrument of European XFEL. The molecule is a precursor of vitamin D. When exposed to UV light, it is rapidly converted into vitamin D2. Vozzi is interested in the question of how exactly this process takes place. To do this, she...
- 03:09 duration
- 86 views
- 0 likes
Inauguration | New CTAO SDMC building

The CTAO (Cherenkov Telescope Array Observatory), one of the major European research projects of the coming decades, will be the world’s largest gamma-ray observatory, dedicated to studying high-energy astrophysical processes in the Universe. With its unprecedented sensitivity and performance, the CTAO will open a new window at the high edge of the electromagnetic spectrum, seeking to...
- 49:39 duration
- 240 views
- 0 likes
High Frequency Gravitational Waves

Sebastian A. R. Ellis, DESY Theory Workshop 2024
- 38:04 duration
- 23 views
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Primordial Black Holes: A dark matter candidate in the gravitational wave era

Gabriele Franciolini, DESY Theory Workshop 2024
- 46:34 duration
- 37 views
- 0 likes
Gravitational Waves from String Bosenova

Anson Hook, DESY Theory Workshop 2024
- 39:16 duration
- 29 views
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Quantum Sensors for High Energy Physics

Aaron S. Chou, DESY Theory Workshop 2024
- 40:31 duration
- 61 views
- 0 likes
Continuous gravitational waves from neutron stars

M. Alessandra Papa, DESY Theory Workshop 2024
- 39:30 duration
- 15 views
- 0 likes
Line intensity mapping

Marc Kamionkowski, DESY Theory Workshop 2024
- 37:01 duration
- 30 views
- 0 likes
LISA: Science and Challenges

Elena Maria Rossi, DESY Theory Workshop 2024
- 29:51 duration
- 22 views
- 0 likes
Stochastic gravitational wave backgrounds at LISA

Valerie Domcke, DESY Theory Workshop 2024
- 42:08 duration
- 48 views
- 0 likes
Collider physics & the relativistic 2-body problem

Rafael Porto, DESY Theory Workshop 2024
- 40:56 duration
- 37 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
- 585 views
- 0 likes
Axion Theory

Prateek Agrawal, DESY Theory Workshop 2024
- 41:07 duration
- 34 views
- 0 likes
Axion Strings

Malte Buschmann, DESY Theory Workshop 2024
- 39:18 duration
- 32 views
- 0 likes
GW Waveforms for BH and new physics

Eugene Lim, DESY Theory Workshop 2024
- 41:22 duration
- 30 views
- 0 likes
Light relics and freeze-in

Prof. Katelin Schutz, DESY Theory Workshop 2024
- 37:56 duration
- 14 views
- 0 likes
Pulsar Timing Arrays on the verge of detection

Nataliya K. Porayko, Theorie Workshop 2024
- 43:08 duration
- 24 views
- 0 likes
New results in axion inflation

Marco Peloso, Theorie Workshop 2024
- 39:20 duration
- 32 views
- 0 likes
Searching for Primordial Gravitational Waves with the CMB

Raphael Flauger, Theorie Workshop 2024
- 37:03 duration
- 26 views
- 0 likes
Cosmological phase transitions and gravitational waves

Jorinde van de Vis, Theorie Workshop 2024
- 41:36 duration
- 26 views
- 0 likes
Jim Penner-Hahn (University of Michigan) at FXE

September 2022
- 01:09 duration
- 80 views
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Oksana Plekan (FERMI at the Elettra Sincrotrone Trieste) at SQS

September 2022
- 01:25 duration
- 104 views
- 0 likes
Lisa Randolph (University of Siegen) at HED

September 2022
- 00:26 duration
- 76 views
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Eilidh McClain (University of Michigan) at FXE

September 2022
- 00:46 duration
- 41 views
- 0 likes
Filipe Maia (Uppsala University) at SPB/SFX

September 2022
- 00:31 duration
- 40 views
- 0 likes
Christian Gutt (University of Siegen) at MID

September 2022
- 00:19 duration
- 34 views
- 0 likes
Markus Gühr (University of Potsdam) at SQS

September 2022
- 01:25 duration
- 112 views
- 0 likes
Lingen Huang (Helmholtz-Zentrum Dresden-Rossendorf, HZDR) at HED

September 2022
- 01:03 duration
- 92 views
- 0 likes
Roseanne Sension (University of Michigan) at FXE

September 2022
- 00:38 duration
- 39 views
- 0 likes
Maddalena Bin (Stockholm University) at MID

September 2022
- 00:31 duration
- 55 views
- 0 likes
Patrick Adams (RMIT University Melbourne) at SPB/SFX

September 2022
- 00:34 duration
- 24 views
- 0 likes
Aniruddha Deb (University of Michigan) at FXE

September 2022
- 00:45 duration
- 41 views
- 0 likes
Caterina Vozzi (CNR Milan) at SQS

September 2022
- 01:03 duration
- 117 views
- 0 likes
Ryan Lamb (University of Michigan) at FXE

September 2022
- 00:41 duration
- 40 views
- 0 likes
Further insights into the experiment station HED by leading scientist Dr. Ulf Zastrau

Length 05:24 min.
- 05:24 duration
- 231 views
- 0 likes
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
- 24871 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
- 5223 views
- 0 likes
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
- 34 views
- 0 likes
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
- 352 views
- 0 likes
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
- 273 views
- 0 likes
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
- 424 views
- 0 likes
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
- 229 views
- 0 likes
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
- 194 views
- 0 likes
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
- 337 views
- 0 likes
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
- 53 views
- 0 likes
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
- 63 views
- 0 likes
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
- 52 views
- 0 likes
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
- 61 views
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Welcome

Consensus and confusion in cosmology

All media

Investigation of ultrafast electronic structure dynamics in correlated oxides at European XFEL

Investigation of superionic states in group-III oxides at European XFEL

Study of ultrafast chiral dynamics of the Vitamin D precursor Ergosterol at European XFEL

Inauguration | New CTAO SDMC building

High Frequency Gravitational Waves

Primordial Black Holes: A dark matter candidate in the gravitational wave era

Gravitational Waves from String Bosenova

Quantum Sensors for High Energy Physics

Continuous gravitational waves from neutron stars

Line intensity mapping

LISA: Science and Challenges

Stochastic gravitational wave backgrounds at LISA

Collider physics & the relativistic 2-body problem

Consensus and confusion in cosmology

Axion Theory

Axion Strings

GW Waveforms for BH and new physics

Light relics and freeze-in

Pulsar Timing Arrays on the verge of detection

New results in axion inflation

Searching for Primordial Gravitational Waves with the CMB

Cosmological phase transitions and gravitational waves

Jim Penner-Hahn (University of Michigan) at FXE

Oksana Plekan (FERMI at the Elettra Sincrotrone Trieste) at SQS

Lisa Randolph (University of Siegen) at HED

Eilidh McClain (University of Michigan) at FXE

Filipe Maia (Uppsala University) at SPB/SFX

Christian Gutt (University of Siegen) at MID

Markus Gühr (University of Potsdam) at SQS

Lingen Huang (Helmholtz-Zentrum Dresden-Rossendorf, HZDR) at HED

Roseanne Sension (University of Michigan) at FXE

Maddalena Bin (Stockholm University) at MID

Patrick Adams (RMIT University Melbourne) at SPB/SFX

Aniruddha Deb (University of Michigan) at FXE

Caterina Vozzi (CNR Milan) at SQS

Ryan Lamb (University of Michigan) at FXE

Further insights into the experiment station HED by leading scientist Dr. Ulf Zastrau

European XFEL in a nutshell

European XFEL im Überblick

Spectroscopy and coherent scattering on catalysts for C-H bonds of saturated alkanes at the European XFEL

Investigation of ultrafast electron solvation dynamics in aqueous systems at European XFEL

Time-dependent measurements of carbon nanoparticle inception at European XFEL

Towards Quantum Vacuum Birefringence using an X-ray Dark-field Technique at European XFEL

Lifetime determination of key astrophysical transitions in highly charged ions at European XFEL

Single-particle X-ray imaging of phycobilisome light harvesting antenna at high repetition rate

Femtosecond-XES characterization of spin-states and structures of transient iron(III)-oxyl species

The hRIXS spectrometer at the SCS instrument explained by Dr. Benjamin van Kuiken

Das FXE-Instrument von European XFEL

The FXE instrument at the European XFEL

Das MID-Instrument bei European XFEL

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