218 citations · 408 across the 8 of their papers we have counts for
7 papers · 1 filter
Multiparticle entanglement purification for two-colorable graph states
H. Aschauer, W. Dür, H. -J. Briegel
We investigate multiparticle entanglement purification schemes which allow one to purify all two colorable graph states, a class of states which includes e.g. cluster states, GHZ s…
Local invariants for multi-partite entangled states allowing for a simple entanglement criterion
Hans Aschauer, John Calsamiglia, Marc Hein +1
We present local invariants of multi-partite pure or mixed states, which can be easily calculated and have a straight-forward physical meaning. As an application, we derive a new e…
Multiparticle entanglement purification for graph states
W. Dür, H. Aschauer, H. -J. Briegel
We introduce a class of multiparticle entanglement purification protocols that allow us to distill a large class of entangled states. These include cluster states, GHZ states and v…
Quantum Communication and Decoherence
Hans Aschauer, Hans J. Briegel
In this contribution we will give a brief overview on the methods used to overcome decoherence in quantum communication protocols. We give an introduction to quantum error correcti…
A security proof of quantum cryptography based entirely on entanglement purification
Hans Aschauer, Hans J. Briegel
We give a proof that entanglement purification, even with noisy apparatus, is sufficient to disentangle an eavesdropper (Eve) from the communication channel. In the security regime…
Entanglement purification with noisy apparatus can be used to factor out an eavesdropper
Hans Aschauer, Hans J. Briegel
We give a proof that entanglement purification, even with noisy apparatus, is sufficient to disentangle an eavesdropper (Eve) from the communication channel. Our proof applies to a…