86 citations · 207 across the 5 of their papers we have counts for
4 papers · 2 filters
Completeness of the classical 2D Ising model and universal quantum computation
M. Van den Nest, W. Dür, H. J. Briegel
We prove that the 2D Ising model is complete in the sense that the partition function of any classical q-state spin model (on an arbitrary graph) can be expressed as a special inst…
A variational method based on weighted graph states
Simon Anders, Hans J. Briegel, Wolfgang Dür
In a recent article [Phys. Rev. Lett. 97 (2006), 107206], we have presented a class of states which is suitable as a variational set to find ground states in spin systems of arbitr…
Entanglement and its dynamics in open, dissipative systems
L. Hartmann, W. Dür, H. -J. Briegel
Quantum mechanical entanglement can exist in noisy open quantum systems at high temperature. A simple mechanism, where system particles are randomly reset to some standard initial…
Fundamentals of universality in one-way quantum computation
M. Van den Nest, W. Dür, A. Miyake +1
We build a framework allowing for a systematic investigation of the issue: "Which quantum states are universal resources for one-way quantum computation?" We start by re-examining…