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Light induced dynamics and control of correlated quantum systems
SFB 925Light induced dynamics and control of correlated quantum systems

Photo: UHH/Denstorf

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24 August 2023|SFB925

DOE Early Career Award für James McIver

James McIver

Photo: Jörg Harms, MPSD

James McIver, Forschungsgruppenleiter am MPSD und Assistenzprofessor für Physik an der Columbia University in New York, ist mit dem angesehenen Early...
17 August 2023|SFB925

Pairing of electrons in artificial atoms discovered

small hillocks

Photo: Lucas Schneider

Researchers from the Department of Physics at Universität Hamburg observed a quantum state that was theoretically predicted more than 50 years ago by...
17 January 2023|SFB925

Researchers cast new light on magnons to verify topological phases in magnetic materials

A magnetic material

Photo: MPSD/Harms

Much recent research has focused on ‘topological’ materials – an intriguing type of solids which fall outside the standard classification into...
20 December 2022|SFB925

Theoreticians discover why optical cavities curb the rate of chemical reactions

Resonant vibrational strong-coupling can inhibit chemical reactions.

Photo: E. Ronca / C. Schäfer

Chemical processes are all around us. From novel materials to more effective medicines or plastic products – chemical reactions play a key role in the...
21 September 2022|SFB925

Terahertz light from superconducting stripes

High-temperature superconducting cuprates emit THz radiation once their surface is illuminated with ultrashort optical pulses.

Photo: MPSD/Harms

Why do some materials carry electrical currents without any resistance only when cooled to near absolute zero while others do so at comparatively high...
20 June 2022|SFB925

Scientists from DESY and the University of Hamburg succeeded in imaging snapshots of molecular orbitals of pentacene on metal surfaces during energy transfer. Their work has been recently published in the journal “Nature Communications”.

Figure 1 Snapshots of molecular orbitals during photoinduced electronic and nuclear transformation.

Photo: UHH\Marvin Reuner and Daria Gorelova

In his Nobel Lecture, Herbert Kroemer famously stated that “The interface is the device”. Scientists from DESY and Hamburg University unveiled...
9 June 2022|SFB925

Researchers observe continuous time crystal

The image shows cold atoms (in yellow) in an optical resonator on their way to form a time crystal.

Photo: AG Hemmerich

Researchers from the Institute of Laser Physics at Universität Hamburg have succeeded for the first time in realizing a time crystal that...
15 October 2021|SFB925

Review on ultrafast control of quantum materials

A quasi-two-dimensional crystal

Photo: MPSD

A review involving a team of MPSD scientists, just published as a colloquium in the prestigious Reviews of Modern Physics, explores how light can...
8 October 2021|SFB925

A highly simplified way to predict quantum light-matter interactions

Describing quantized light-matter interaction can be a cumbersome task that demands many building blocks to add up correctly, a bit like building the Berlin Gate from individual stones (right). Schaefer et al. found a new way to reshape the equations

Photo: Jörg Harms, MPSD

When light interacts with matter, for example when a laser beam hits a two-dimensional material like graphene, it can substantially change the...
24 September 2021|SFB925

Twisted layers of MoS2 enable the engineering of novel states of matter

Charge gap emerging in twisted MoS2 upon decreasing the twist angle (increasing U/t). As the charge gap grows, magnetic phases are stabilized. This in turn gives rise to exotic quantum magnetism in twisted MoS2.

Photo: Martin Claassen

A team of researchers from Germany, China and the United States has discovered that two twisted layers of MoS2 can be used to control kinetic energy...
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