160 citations · 195 across the 10 of their papers we have counts for
10 papers
The resource theory of causal influence and knowledge of causal influence
Marina Maciel Ansanelli, Beata Zjawin, David Schmid +5
Understanding and quantifying causal relationships between variables is essential for reasoning about the physical world. In this work, we develop a resource-theoretic framework to…
Typicality of Contextuality
Vinicius P. Rossi, Beata Zjawin, Roberto D. Baldijão +3
Identifying when observed statistics cannot be explained by any reasonable classical model is a central problem in quantum foundations. A principled and universally applicable appr…
Robust self-testing of quantum steering assemblages via operator inequalities
Beata Zjawin
Robust self-testing provides a framework for certifying quantum resources under experimental imperfections. Improving robustness bounds for quantum resources such as quantum states…
Activation of post-quantumness in bipartite generalised EPR scenarios
Beata Zjawin, Matty J. Hoban, Paul Skrzypczyk +1
In a standard bipartite Einstein-Podolsky-Rosen (EPR) scenario, Alice and Bob share a system prepared in an entangled state and Alice performs local measurements. One possible gene…
Engineering the sensitivity of macroscopic physical systems to variations in the fine-structure constant
Beata Zjawin, Marcin Bober, Roman Ciuryło +3
Experiments aimed at searching for variations in the fine-structure constant are based on spectroscopy of transitions in microscopic bound systems, such as atoms and ions, or r…
The resource theory of nonclassicality of channel assemblages
Beata Zjawin, David Schmid, Matty J. Hoban +1
When two parties, Alice and Bob, share correlated quantum systems and Alice performs local measurements, Alice's updated description of Bob's state can provide evidence of nonclass…
Quantifying EPR: the resource theory of nonclassicality of common-cause assemblages
Beata Zjawin, David Schmid, Matty J. Hoban +1
Einstein-Podolsky-Rosen (EPR) steering is often (implicitly or explicitly) taken to be evidence for spooky action-at-a-distance. An alternative perspective on steering is that Alic…
Restricted Hidden Cardinality Constraints in Causal Models
Beata Zjawin, Elie Wolfe, Robert W. Spekkens
Causal models with unobserved variables impose nontrivial constraints on the distributions over the observed variables. When a common cause of two variables is unobserved, it is im…
Entropic Inequality Constraints from -separation Relations in Directed Acyclic Graphs with Hidden Variables
Noam Finkelstein, Beata Zjawin, Elie Wolfe +2
Directed acyclic graphs (DAGs) with hidden variables are often used to characterize causal relations between variables in a system. When some variables are unobserved, DAGs imply a…
First observation with global network of optical atomic clocks aimed for a dark matter detection
P. Wcisło, P. Ablewski, K. Beloy +19
We report on the first earth-scale quantum sensor network based on optical atomic clocks aimed at dark matter (DM) detection. Exploiting differences in the susceptibilities to the…