We investigate multiparticle entanglement purification schemes which allow\none to purify all two colorable graph states, a class of states which includes\ne.g. cluster states, ...
We introduce a variational method for the approximation of ground states of strongly interacting spin systems in arbitrary geometries and spatial dimensions. The approach is bas...
We give a security proof of quantum cryptography based entirely on entanglement purification. Our proof applies to all possible attacks (individual and coherent). It implies the...
h-index: Number of publications with at least h citations each.