6 citations · 6 across the 3 of their papers we have counts for
3 papers
quant-ph2014★ 6 cited
Entanglement witnesses for systems and new classes of entangled qudit states
D. Chruściński, A. Rutkowski
We provide a new class of entanglement witnesses for $d \ot d$ systems (two qudits). Our construction generalizes the one proposed recently by Jafarizadeh et al. for and $d=4…
quant-ph2014
Local numerical range for a class of hermitian operators
J. Jurkowski, A. Rutkowski, D. Chruściński
A local numerical range is analyzed for a family of circulant observables and states of composite systems. It is shown that for any circulant operator $\…
quant-ph2014
Construction and properties of a class of private states in arbitrary dimensions
Adam Rutkowski, Michał Studziński, Piotr Ćwikliński +1
We present a construction of quantum states in dimension that has at least 1 dit of ideal key, called private dits (pdits), which covers most of the known examples of private b…