activity
19992014
most citedCounterexample to an additivity conjecture for output purity of quantum channels

155 citations · 374 across the 9 of their papers we have counts for

collaborators

10 papers

quant-ph2014★ 5 cited

What Maudlin replied to

R. F. Werner

A recent post by Tim Maudlin to this archive (arXiv:1408.1828) was entitled "Reply to Werner". However, it was not clear to what text this was supposed to be a reply. Here I briefl…

quant-ph2010

Full Counting Statistics of Stationary Particle Beams

J. Kiukas, A. Ruschhaupt, R. F. Werner

We present a general scheme for treating particle beams as many particle systems. This includes the full counting statistics and the requirements of Bose/Fermi symmetry. In the sta…

quant-ph2009★ 21 cited

Maximal violation of Bell inequalities by position measurements

J. Kiukas, R. F. Werner

We show that it is possible to find maximal violations of the CHSH-Bell inequality using only position measurements on a pair of entangled non-relativistic free particles. The devi…

quant-ph2009★ 13 cited

Tunneling times with covariant measurements

J. Kiukas, A. Ruschhaupt, R. F. Werner

We consider the time delay of massive, non-relativistic, one-dimensional particles due to a tunneling potential. In this setting the well-known Hartman effect asserts that often th…

quant-ph2008★ 47 cited

Lower bounds on entanglement measures from incomplete information

O. Gühne, M. Reimpell, R. F. Werner

How can we quantify the entanglement in a quantum state, if only the expectation value of a single observable is given? This question is of great interest for the analysis of entan…

quant-ph2005★ 50 cited

A universally programmable Quantum Cellular Automaton

D. J. Shepherd, T. Franz, R. F. Werner

We discuss the role of classical control in the context of reversible quantum cellular automata. Employing the structure theorem for quantum cellular automata, we give a general co…