Daniel Braun, Université Paul Sabatier, Toulouse
Ralph Merkle, Institute for Molecular Manufacturing and Singularity University
Dieter Suter, Universität Dortmund
Shengyu Zhang, The Chinese University of Hong Kong
Jason Alicea, University of California, Irvine
Patrice Bertet, CEA-Saclay
Roger Colbeck, Perimeter Institute
Birgitta Whaley, University of California, Berkeley
Undergraduate School on Experimental Quantum Information Processing
Ansis Rosmanis, IQC
We examine the fixed space of positive trace preserving and completely
positive trace preserving super-operators. We describe what form the
fixed space of a completely positive trace preserving super-operator
must take, what dimensions this space may have, and what the
projection onto it must look like.