We are fascinated by ...

  • Universal matter-wave interferometry
    • Towards metal cluster interferometry:
      a new material class in quantum physics to probe the interface to the classical world.  
    • From Polypeptide towards Protein interferometry:
      a new material class to study complexity & dynamics of biomolecules in quantum physics.   
  • Cooling and quantum optomechanics 
    • Optical cooling of non-spherical nanoparticles to explore their rotational quantum states.
    • Cooling of nanobiological matter to harvest their internal complexity. 
  • Enabling technologies for quantum experiments
    • Sources of metal clusters, dielectric and biological nanomaterials: for matter-wave interferometry.
    • Single-photon charge control and coherent beam splitting of proteins & metal clusters. 
    • Interfeormeter concepts for complex nanomatter.
  • Quantum sensors
    • Matter-wave deflectometers with high force sensitivity:
      ... to measure electro-magnetic, optical & dynamical properties of molecules of interst to biology and chemistry.
    • Trapped nanorotors: 
      ... to realize highly sensitive torque & rotations sensors on the micron scale.  
    • Superconducting nanowire detectors:
      ... to open new avenues to mass spectrometry, molecule analysis by harvesting the sensitivity of quantum states.

 Latest News


The geometry of neuronal population dynamics and scaling of its dimensionality using cellular resolution cortex-wide recording of neuroactivity


Talk by Marcel Strauss: Highly sensitive single particle detection of neutral and charged macromolecular beams


The Bad Honnef Physics Winter School 2024 on Frontiers of Quantum Mechanics was organised by Markus Arndt and Claus Lämmerzahl in close cooperation...


Congratulations to Philipp Rieser on completing his PhD with distinction!


Congratulations to Josef Reisinger on completing his Master thesis with distinction!



Ultracold AlF molecules - a new platform for fundamental physics