Marcus Huber

TL;DR: In this article, the authors generalize the bipartite concept to the multipartite setting by introducing non-positive maps that are positive on the subset of biseparable states but can map to a nonpositive element if applied to a genuine multi-partite entangled state.

TL;DR: In this paper, it is shown that it is possible to perform a broad variety of unitary operations when the number of phase modulation planes is comparable to the number in the full-field mode structure of photons.

TL;DR: In this paper, a model of time measurements that is complete and autonomous is introduced, where the clock consists of two thermal baths at different temperatures, and it is shown that the laws of thermodynamics dictate a trade-off between the amount of dissipated heat and the clock's performance.

TL;DR: A framework for lower bounding the appropriate measure of entanglement, the so-called G-concurrence, is derived through few local measurements and it is shown that these bounds have relevant applications also for multipartite states.

TL;DR: Two sets of computable entanglement measures for multipartite systems where each subsystem can have different degrees of freedom (so-called qudits) are presented and it is shown how lower bounds on both sets of measures can be obtained by the observation that any entropy may be rewritten via operational expressions known as concurrences.