55 citations · 62 across the 9 of their papers we have counts for
7 papers · 1 filter
Analytic construction of dimension-dependent steering witnesses from generalized equiangular measurements
Adam Rutkowski, Katarzyna Siudzińska
We construct a dimension-dependent family of generalized equiangular measurements that gives explicit steering witnesses in every prime dimension . The construction consist…
Sufficient conditions for the Kadison--Schwarz property of unital positive maps on
Adam Rutkowski
Kadison--Schwarz (KS) maps form a natural class of positive linear maps lying strictly between positivity and complete positivity. Despite their relevance in operator algebras and…
Violation of steering inequality for generalized equiangular measurements
Adam Rutkowski, Katarzyna Siudzińska
In this article, we study bipartite quantum steering using a general class of measurement operators known as the generalized equiangular measurement (GEAM). Our approach allows for…
Controlling nonlocality of bipartite qubit states via quantum channels
Adam Rutkowski, Katarzyna Siudzińska
In this paper, we analyze quantum channels derived from a class of two-qubit states known as the X states. In particular, we consider X states that break the Bell's CHSH condition…
Constructive nonlocal games with very small classical values
M. Rosicka, S. Szarek, A. Rutkowski +2
There are few explicit examples of two player nonlocal games with a large gap between classical and quantum value. One of the reasons is that estimating the classical value is usua…
Unbounded violation of quantum steering inequalities
M. Marciniak, A. Rutkowski, Z. Yin +2
We construct steering inequalities which exhibit unbounded violation. The concept was to exploit the relationship between steering violation and uncertainty relation. To this end w…
Tensor product extension of entanglement witnesses and their connection with measurement device independent entanglement
A. Rutkowski, P. Horodecki
We provide a new extension of entanglement witnesses for systems. Our construction preserves the properties of indecomposability and s…