dwierichs(he/him)

I am a scientist & software developer at Xanadu, before that I did my PhD in physics at the university of Cologne, Germany (See my thesis on gradient estimation and gradient-based optimization of parametrized quantum circuits). I studied physics in Bielefeld, Aachen, and Munich (all in Germany).

Here are some demos/how-tos/tutorials/blog posts I wrote:

• Demo: Optimal control for gate compilation
  Shows compilation of a gate into a pulse sequence using differentiable pulse programming.
• Demo: Generalized parameter-shift rules
  Discusses a generalization of the popular "parameter-shift rule" to more general gates, based on a paper of ours.
• Demo: Here comes the SU(N): Multivariate quantum gates and gradients
  Showcases arbitrary special unitary gates as circuit ansätze, and their differentiation, based on the eponymous paper.
• Demo: Quantum Analytic Descent
  With Elies Gil-Fuster. Implements and discusses the eponymous algorithm from this paper.
• Demo: Optimization Using SPSA
  With Antal Szava. Showcases how stochastic gradient estimation can help with convergence (speed).
• Demo: Training and evaluating quantum kernels
  With Elies Gil-Fuster, Johannes Jakob Meyer, Peter-Jan Derks, and Tom Hubregtsen. Explores trainable quantum embedding kernels for near-term quantum hardware, based on a QHack-originated paper (PRA).
• How to collect statistics of mid-circuit measurements.
• How to create dynamic circuits with mid-circuit measurements.
• Tutorial: Introduction to mid-circuit measurements