Research Highlights

19 November 2024|Research Highlight

Unveiling the Universe's 'Ghost' Matter

Filaments of the warm-hot intergalactic medium over a patch covering about 5% of the sky, which were detected by eROSITA in X-rays.

Photo: MPE/Xiaoyuan Zhang

A team of scientists using the eROSITA X-ray telescope has shed light on one of the most elusive components of the universe: the warm-hot...

5 November 2024|Research Highlight

Mystery of Supersonic Turbulence Solved

Distribution of the material on a cross-section of one of the turbulence simulations. The colours represent the density

Photo: Evan Scannapieco et al. (2024)

Which clumps of interstellar gas will collapse under gravity to form stars and which clumps will not? This is related to a key problem in turbulence...

4 November 2024|Research Highlight

Origin of the Cosmic Hum - Phase Transition or Primordial Black Holes?

A graphical representation of how gravitational waves from a cosmological phase transition or from merging black holes could have led to the signals recently observed by pulsar timing arrays

Photo: Carlo Tasillo & David Weir

New ideas for the origin of the ‘cosmic hum’ have been further developed in a couple of recent studies by Excellence Cluster Quantum Universe...

22 October 2024|Research Highlight

Detailed study of collisions with top quarks points to unknown structure

Photo: CMS Collaboration

A group of scientists from the University of Hamburg’s cluster of excellence Quantum Universe and DESY in collaboration with the University of...

24 September 2024|Research Highlight

LHC experiments observe quantum entanglement at the highest energy yet

Artist’s impression of a quantum-entangled pair of top quarks

Photo: CERN

For the first time, quantum entanglement has been observed at energies as high as 13 TeV. This remarkable result stems from top quark measurements by...

24 September 2024|Research Highlight

Another Step towards a Storage Ring-based Gravitational Wave Observatory

Comparison of the signal strength of space time stretching caused by the inspiral, ringdown and merging phases of super-massive binary black holes (SMBBH) or extreme mass-ratio inspirals (EMRI) and time-of-flight noise of uranium ions and diuraniom m

Photo: Schmirander, T. et al. (2024)

In a unique collaboration of the Hamburg Observatory and the Institute of Experimental Physics of the University of Hamburg, which was fostered by the...

20 September 2024|Research Highlight

First Limits on Axion Dark Matter from MADMAX

The axion dark matter search result (orange filled region) from the MADMAX prototype. The axion-photon coupling (in inverse giga-electron-Volts ) is on the vertical axis and axion dark matter mass (in micro-electron-volts) is on the horizontal axis.

Photo: Ary dos Santos Garcia, B., et al. (MADMAX Collaboration (2024)

For its first time, the MADMAX (Magnetized Disc and Mirror Axion eXperiment) collaboration has set limits on axion dark matter with its prototype...

5 September 2024|Research Highlight

Eccentric Black Hole Binaries Could Point to a New Fundamental Particle

Diagram of orbital shape (eccentricity) vs. black hole mass for black hole binaries.

Photo: M. Koschnitzke & M. Bošković et al. (2024)

Three researchers from the Quantum Universe Excellence Cluster have found that observing black hole binaries with a higher than expected orbital...

19 August 2024|Research Highlight

MADMAX Prototype Searches for Dark Photon Dark Matter with Thousand-fold Improvement

search results - kinetic mixing angle vs mass - for dark photon dark matter from the MADMAX Prototype

Photo: MADMAX Collaboration – Egge, J. et al. (2024)

MADMAX (Magnetized Disc and Mirror Axion eXperiment) at University of Hamburg & DESY is being developed to look for Galactic axion dark matter using a...

14 August 2024|Research Highlight

The Imprint of Cosmic Strings in High Frequency Gravitational Waves

Gravitational wave strain vs. frequency (in Hertz) with the red line depicting the signal generated by local cosmic strings

Photo: Servant, G. and Simakachorn, P. (2024)

Wrinkles in the fabric of spacetime, known as cosmic strings, which might have formed in the early Universe, could be a dominant source of...

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Research Highlights

Unveiling the Universe's 'Ghost' Matter

Mystery of Supersonic Turbulence Solved

Origin of the Cosmic Hum - Phase Transition or Primordial Black Holes?

Detailed study of collisions with top quarks points to unknown structure

LHC experiments observe quantum entanglement at the highest energy yet

Another Step towards a Storage Ring-based Gravitational Wave Observatory

First Limits on Axion Dark Matter from MADMAX

Eccentric Black Hole Binaries Could Point to a New Fundamental Particle

MADMAX Prototype Searches for Dark Photon Dark Matter with Thousand-fold Improvement

The Imprint of Cosmic Strings in High Frequency Gravitational Waves

A project of Universität Hamburg
in cooperation with

Cluster of Excellence
Quantum Universe

Research Highlights

Unveiling the Universe's 'Ghost' Matter

Mystery of Supersonic Turbulence Solved

Origin of the Cosmic Hum - Phase Transition or Primordial Black Holes?

Detailed study of collisions with top quarks points to unknown structure

LHC experiments observe quantum entanglement at the highest energy yet

Another Step towards a Storage Ring-based Gravitational Wave Observatory

First Limits on Axion Dark Matter from MADMAX

Eccentric Black Hole Binaries Could Point to a New Fundamental Particle

MADMAX Prototype Searches for Dark Photon Dark Matter with Thousand-fold Improvement

The Imprint of Cosmic Strings in High Frequency Gravitational Waves

A project of Universität Hamburg in cooperation with

Cluster of Excellence Quantum Universe

A project of Universität Hamburg
in cooperation with

Cluster of Excellence
Quantum Universe