608 citations · 789 across the 8 of their papers we have counts for
8 papers · 1 filter
Power-resolved ergotropy and correlation redistribution in a bosonic quantum battery driven by a coherent-state superposition
João P. d'El-Rey, Tailan S. Sarubi, Ana C. S. Costa +1
Ergotropic-gap relations provide thermodynamic witnesses of quantum correlations, but a direct dynamical connection between extractable work and entanglement remains largely unexpl…
Axiomatic approach to measures of total correlations
Gabriel L. Moraes, Renato M. Angelo, Ana C. S. Costa
Correlations play a pivotal role in various fields of science, particularly in quantum mechanics, yet their proper quantification remains a subject of debate. In this work, we aim…
Correcting for finite statistics effects in a quantum steering experiment
Sophie Engineer, Ana C. S. Costa, Alexandre C. Orthey +7
Verifying entanglement between parties is essential for creating secure quantum communication. However, finite statistics can lead to false positive outcomes in any tests for entan…
Information-based approach towards a unified resource theory
A. C. S. Costa, R. M. Angelo
Resource theories play an important role in quantum information theory, as they identify resourceful states and channels that are potentially useful for the accomplishment of tasks…
Experimental demonstration of robust quantum steering
Sabine Wollmann, Roope Uola, Ana C. S. Costa
We analyse and experimentally demonstrate quantum steering using criteria based on generalised entropies and criteria with minimal assumptions based on the so-called dimension-boun…
Quantum Steering
Roope Uola, Ana C. S. Costa, H. Chau Nguyen +1
Quantum correlations between two parties are essential for the argument of Einstein, Podolsky, and Rosen in favour of the incompleteness of quantum mechanics. Schrödinger noted tha…
Entropic Steering Criteria: Applications to Bipartite and Tripartite Systems
Ana C. S. Costa, Roope Uola, Otfried Gühne
The effect of quantum steering describes a possible action at a distance via local measurements. Whereas many attempts on characterizing steerability have been pursued, answering t…
Steering criteria from general entropic uncertainty relations
Ana C. S. Costa, Roope Uola, Otfried Gühne
The effect of steering describes a possible action at a distance via measurements but characterizing the quantum states that can be used for this task remains difficult. We provide…