334 citations · 1.2k across the 16 of their papers we have counts for
6 papers · 2 filters
On the role of memory errors in quantum repeaters
L. Hartmann, B. Kraus, H. -J. Briegel +1
We investigate the influence of memory errors in the quantum repeater scheme for long-range quantum communication. We show that the communication distance is limited in standard op…
Classical simulation versus universality in measurement based quantum computation
M. Van den Nest, W. Dür, G. Vidal +1
We investigate for which resource states an efficient classical simulation of measurement based quantum computation is possible. We show that the Schmidt--rank width, a measure rec…
Optimal purification of thermal graph states
Alastair Kay, Jiannis K. Pachos, Wolfgang Dür +1
In this paper, a purification protocol is presented and its performance is proven to be optimal when applied to a particular subset of graph states that are subject to local Z-nois…
Universal resources for measurement-based quantum computation
Maarten Van den Nest, Akimasa Miyake, Wolfgang Dür +1
We investigate which entanglement resources allow universal measurement-based quantum computation via single-qubit operations. We find that any entanglement feature exhibited by th…
Ground state approximation for strongly interacting systems in arbitrary dimension
S. Anders, M. B. Plenio, W. Dür +2
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 based…
Entanglement in Graph States and its Applications
M. Hein, W. Dür, J. Eisert +3
Graph states form a rich class of entangled states that exhibit important aspects of multi-partite entanglement. At the same time, they can be described by a number of parameters t…