7 papers
Holographic quantum codes with trapped ions
Alex Steiner, Gerard Anglès Munné, Robert Freund +9
Holography is a central concept at the intersection of gravity, condensed matter theory, and quantum information, linking the interior bulk of a system to its boundary. A model rea…
Typicality of Steering for Two-qubit States
Gerard Anglès Munné, PaweÅ CieÅliÅski, Tamás Vértesi +1
Phenomena that slip beyond the grasp of our classical intuition reveal uniquely quantum effects that deepen our understanding of the physical world and enable advances in informati…
Combining moment matrices, symmetric extension, and Lovász theta: is entangled
Jȩdrzej Stempin, Gerard Anglès Munné, Santiago Llorens +1
We solve an open problem in entanglement theory posed by Yu et al., {\it Nature Communications 12, 1012 (2021)}. The problem is to show, via an entanglement witness, that the -…
The Richness of Bell Nonlocality: Generalized Bell Polygamy and Hyper-Polygamy
Gerard Anglès Munné, PaweÅ CieÅliÅski, Jan Wójcik +1
Non-classical quantum correlations underpin both the foundations of quantum mechanics and modern quantum technologies. Among them, Bell nonlocality is a central example. For bipart…
Threshold entanglement sharing: quantum states with absolutely separable marginals
Albert Rico, Jofre Abellanet-Vidal, Naga Bhavya Teja Kothakonda +2
Motivated to understand how entanglement resources can be distributed in quantum networks, we introduce threshold entanglement (TE) states. These are multipartite quantum states wh…
SDP bounds on quantum codes: rational certificates
Gerard Anglès Munné, Felix Huber
A fundamental problem in quantum coding theory is to determine the maximum size of quantum codes of given block length and distance. A recent work introduced bounds based on semide…