Perturbation of the numerical range of unitary matrices

TytułPerturbation of the numerical range of unitary matrices
Publication TypeJournal Article
Rok publikacji2020
AutorzyKukulski R, Lewandowska P, Pawela Ł
JournalComputational Science - ICCS 2020

In this work we show how to approach the problem of manimulating the numerical range of a unitary matrix. This task has farreaching impact on the study of discrimination of quantum measurements. We achieve the aforementioned manipulation by introducing
a method which allows us to find a unitary matrix whose numerical range contains the origin where at the same time the distance between
unitary matrix and its perturbation is relative small in given metric.




Historia zmian

Data aktualizacji: 14/09/2020 - 11:10; autor zmian: Paulina Lewandowska (