We are a broadly interested research group, working on topics including

• Characterization of quantum processes and verification of quantum computing components
• Quantum simulation (certification)
• Quantum tomography
• Compressed sensing
• Tensor networks
• Aspects of computational complexity
• Applied math

See Contact for directions

News

• 08|2019 Recovering quantum gates from few average gate fidelities published in Quantum
• 06|2019 Sample complexity of device-independently certified "quantum supremacy" featured in Phys.org
• 04|2019 Simultaneous structures in convex signal recovery - revisiting the convex combination of norms published in Frontiers in Applied Mathematics and Statistics
• 04|2019 Sample complexity of device-independently certified "quantum supremacy" accepted in PRL
• 12|2018 Sample complexity of device-independently certified "quantum supremacy" -> arXiv
• 11|2018 Recovering quantum gates from few average gate fidelities accepted for a talk at QIP 2019 (among the 60 out of 349 accepted submissions)
• 10|2018 Start of a new lecture: Machine learning in quantum physics
• 09|2018 Recovering quantum gates from few average gate fidelities selected as Editor's Suggestion in PRL
• 08|2018 Lennart Bittel and Raphael Brieger are starting their PhDs. Warm welcome!
• 06|2018 Note on the saturation of the norm inequalities between diamond and nuclear norm accepted in IEEE Trans. Inf. Theory
• 05|2018
  Fidelity witnesses for fermionic quantum simulations made it into PRL
• 04|2018
  Start: junior professorship for quantum technology at the Heinrich Heine University of Düsseldorf
• 03|2018
  Book chapter on thermal quantum states -> arXiv
• 03|2018
  Recovering quantum gates from few average gate fidelities -> arXiv
• 12|2017
  Direct certification of a class of quantum simulations selected as anniversary highlight in Quantum Science and Technology
• 11|2017
  On products of Gaussian random variables -> arXiv
• 08|2017
  Proceedings: On the distribution of a product of N Gaussian random variables
• 06|2017
  Guaranteed recovery of quantum processes from few measurements and
  Mixing properties of stochastic quantum Hamiltonians at TQC in Paris
• 01|2017
  Guaranteed recovery of quantum processes from few measurements -> arXiv
• 12|2016
  Reliable recovery of hierarchically sparse signals and application in machine-type communications -> arXiv
• 11|2016
  Mixing Properties of Stochastic Quantum Hamiltonians made it into CMP