University of Heidelberg, Germany, 1997, Masters in Physics
Ludwig Maximilians University Munich, Germany, 2003, PhD in Physics
2003 - 06: Caltech (postdoc),
2006 - 07: Perimeter Institute (postdoc),
Since 2008: UBC (faculty)
Sloan Research Fellow (2009 - 11)
measurement-based models for quantum computation, fault-tolerant quantum computation under geometric constraints, quantum cellular automata,
My research is quantum information, particularly computation. I have invented, with Hans Briegel, the so-called one-way quantum computer. It is a scheme of quantum computation driven by local projective measurements on an entangled resource state, the so-called cluster state. Entanglement in the resource is consumed as the computation proceeds.
Subsequently, with my co-workers J. Harrington (LANL) and K. Goyal (Caltech) I have described a scheme of fault-tolerant quantum computation for qubits arranged in a 2D lattice which only requires nearest-neighbor translation-invariant Ising interaction + local operation (2007). This scheme yields the highest known fault-tolerance threshold for a 2D architecture.
I am currently very interested in the relation of quantum computation to symmetry-protected topological order, and to Bell-nonlocality and contextuality.