3 papers
quant-ph2024
Extendibility of Brauer states
Adrian Solymos, Dávid Jakab, Zoltán Zimborás
We investigate the extendibility problem for Brauer states, focusing on the symmetric two-sided extendibility and the de Finetti extendibility. By employing the representation theo…
quant-ph2024
Generalized group designs: constructing novel unitary 2-, 3- and 4-designs
Ágoston Kaposi, Zoltán Kolarovszki, Adrián Solymos +1
Unitary designs are essential tools in several quantum information protocols. Similarly to other design concepts, unitary designs are mainly used to facilitate averaging over a rel…
quant-ph2022
Extendibility of Werner States
Dávid Jakab, Adrian Solymos, Zoltán Zimborás
We investigate the two-sided symmetric extendibility problem of Werner states. The interplay of the unitary symmetry of these states and the inherent bipartite permutation symmetry…