58 citations · 135 across the 11 of their papers we have counts for
12 papers · 1 filter
Multipartite entanglement
Pawel Horodecki, Łukasz Rudnicki, Karol Życzkowski
In this contribution we present a concise introduction to quantum entanglement in multipartite systems. After a brief comparison between bipartite systems and the simplest non-triv…
Suppression of noise in separation estimation of optical sources with spatial-mode demultiplexing
Fattah Sakuldee, Łukasz Rudnicki
Spatial mode demultiplexing was proved to be a successful tool for estimation of the separation between incoherent sources, allowing for sensitivity much below the Rayleigh limit.…
Classicality of the Bogoliubov transformations and the dynamical Casimir effect through the reduced state of the field
Tomasz Linowski, Łukasz Rudnicki
We use the reduced state of the field formalism [Entropy 21, 705 (2019)] to derive conditions under which a Bogoliubov transformation can be considered semi-classical. We apply thi…
Quantum speed limit helps interpret geometric measure of entanglement
Łukasz Rudnicki
Using the approach offered by quantum speed limit, we show that geometric measure of multipartite entanglement for pure states [Phys. Rev. A 68, 042307(2003)] can be interpreted as…
Thermodynamics of Reduced State of the Field
Stefano Cusumano, Łukasz Rudnicki
Recent years have seen the flourishing of research devoted to quantum effects on mesoscopic and macroscopic scales. In this context, in Entropy 2019, 21, 705, a formalism aiming at…
Five open problems in quantum information
Paweł Horodecki, Łukasz Rudnicki, Karol Życzkowski
We identify five selected open problems in the theory of quantum information, which are rather simple to formulate, were well-studied in the literature, but are technically not eas…