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Fakultät Physik
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AG Wang

Experimental Condensed Matter Physics

Novel quantum states arise in correlated condensed matter systems due to strong interactions of spin, charge, orbital, and lattice degrees of freedom. The research topic of my group focuses on the study of quantum phenomena governed by many-body interactions in strongly correlated quantum materials. Various optical spectroscopies are used to study dynamical responses of equilibrium and optically driven non-equilibrium states in quantum materials, e.g. quantum magnets and superconductors, under tunable external conditions such as temperature and magnetic field. Our goal is to uncover and understand the characteristic dynamical properties for quantum states, and to coherently control these states.

Group News

08/18/2026

Cavity engineering boosts terahertz high-harmonic generation in a Dirac semimetal

In collaboration with researchers from Basel, Pisa and Shanghai, our group reports giant enhancement of terahertz high-harmonic generation in Cd₃As₂.
Illustration of giant enhancement of semimetallic terahertz high-harmonic generation by a cavity
11/14/2025

Weyl fermions get wild under terahertz light

In collaboration with researchers from Basel, Halle, and Valencia, our group reports the observation of high-order nonlinear response of Weyl fermions
The strong field THz pulse with frequency f drives massless Weyl Fermions in the Weyl semimetal, which efficiently generate high harmonic radiation with frequency 3f.
10/25/2025

Patrick Pilch got recognition in an international conference

Patrick Pilch received a Best PhD Candidate Oral Award for his presentation
05/28/2025

New Insights into the Behavior of Excitons in Semiconductors

A team led by Prof. Zhe Wang investigated nonlinear effects in a semiconductor and published the resutls in „Physical Review Letters“.
AI generated image showing nonequilibrium excitons in a semiconductor
04/30/2025

Dr. Siyu Duan’s project of terahertz hybrid metasurfaces funded by the DFG Walter Benjamin Programme

The German Research Foundation (DFG) recently awarded a two-year postdoctoral fellowship through the renown Walter Benjamin Programme to Dr. Siyu Duan…
Picture of Dr. Siyu Duan
03/13/2025

Researchers Use Light to Read Magnetic Structures

TU Physicists describe in Nature Communications how terahertz pulses could be used to read hard drives in picoseconds.
The graphic shows a bright, neon-orange beam that initially runs in waves from left to right. The beam hits a transparent cuboid containing different groupings of circles with arrows. The beam splits and bypasses these groupings and becomes wavy again on the other side of the cuboid. The background is dark.
06/26/2024

Exotic quantum state observed

Discovery of repulsively bound magnons was published in Nature
Repulsively bound two and three magnons for a Heisenberg–Ising antiferromagnetic chain in a strong transverse field
05/08/2024

Unusual transport properties discovered in a quantum metal

The latest findings on quantum phase transitions were published in "Physical Review Letters"