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Department of Physics

Research Topics

We are doing research in a variety of topics in condensed matter theory, see the list below. Recent results are summarized in the Research Highlights.

Correlated solid state systems with prominent quantum effects

  • Quantum spin systems
  • Strongly interacting electronic systems
  • Inelastic scattering or absorption
  • Binding phenomena
  • Topologically non-trivial systems

Research Highlights

Mutually attracting spin waves in the square-lattice quantum antiferromagnet
M. Powalski, K.P. Schmidt, and G.S. Uhrig
SciPost Phys. 4, 001 (2018)

Pulication Figure for "Correlated solid state systems with prominent quantum ef­fects".. © Michael Powalski et al.​/​SciPost Phys. 4, 001 (2018)

Non-equilibrium physics

  • Quenched lattice systems
  • Periodically pulsed and continuously driven systems
  • Stroboscopic stationary states
  • Ultrafast magnetism

Research Highlights

Dynamical properties of a driven dissipative dimerized S=1/2 chain
M. Yarmohammadi, C. Meyer, B. Fauseweh, B. Normand, and G.S. Uhrig
Phys. Rev. B 103, 045132 (2021)

Pulication Figure for "Non-equiibrium physics" illustrating the energy flow in a spin-phonon-coupled system driven by a laser field. © 2021 American Physical Society​/​Phys Rev. B. 103, 045132 (2021)

Coherence and coherent control

  • Dynamic decoupling
  • Robust quantum gates
  • Pulse protocols
  • Spin noise

Research Highlights

Resonant spin amplification in Faraday geometry
P. Schering, E. Evers, V. Nedelea, D.S. Smirnov, E.A. Zhukov, D.R. Yakovlev, M. Bayer, G.S. Uhrig, and A. Greilich
Phys. Rev. B 103, L201301 (2021)

Pulication Figure for "Coherence and coherent control" demonstrating resonant spin amplification in Faraday geometry. © 2021 American Physical Society​/​Phys. Rev. B 103, L201301 (2021)