10 papers
Multi-entropy in random tensor networks
Miao Hu, Simon Lin, Ion Nechita
We study the evaluation of Rényi multi-entropies in Random Tensor Network (RTN) states in the large bond-dimension limit. For the case of Rényi index and arbitr…
Quantum Graph Theory by Example
Gian Luca Spitzer, Ion Nechita
Quantum graphs have been introduced by Duan, Severini, and Winter to describe the zero-error behaviour of quantum channels. Since then, quantum graph theory has become a field of s…
Inclusion constants for free spectrahedra with applications to quantum incompatibility
Andreas Bluhm, Eric Evert, Igor Klep +2
Building on the matrix cube problem, inclusions of free spectrahedra have been used successfully to obtain relaxations of hard spectrahedral inclusion problems. The quality of such…
Estimating the entanglement of random multipartite quantum states
Khurshed P. Fitter, Cecilia Lancien, Ion Nechita
Genuine multipartite entanglement of a given multipartite pure quantum state can be quantified through its geometric measure of entanglement, which, up to logarithms, is simply the…
Factorization of multimeters: a unified view on nonclassical quantum phenomena
Tim Achenbach, Andreas Bluhm, Leevi Leppäjärvi +4
Quantum theory exhibits various nonclassical features, such as measurement incompatibility, contextuality, steering, and Bell nonlocality, which distinguish it from classical physi…
Random measurements are almost maximally incompatible
Andreas Bluhm, Cécilia Lancien, Ion Nechita
In this work, we investigate the incompatibility of random quantum measurements. Most previous work has focused on characterizing the maximal amount of white noise that any fixed n…