Электронный каталог

Статья

Khvedelidze, A.
Towards Parameterizing the Entanglement Body of a Qubit Pair : [Abstract] / A.Khvedelidze, D.Mladenov, A.Torosyan // Физика элементарных частиц и атомного ядра. – 2025. – Т. 56, № 6 : Международная конференция «Математическое моделирование и вычислительная физика», Ереван, Армения, 21–25 октября 2024 г. : Материалы. – P. 1968. – URL: https://www1.jinr.ru/Pepan/v-56-6/Khvedelidze.pdf.

A method that allows increasing a computational efficiency of evaluation of nonlocal characteristics of a pair of qubits is described. The method is based on the construction of coordinates on a generic section of 2-qubit’s entanglement space E&sub(2×2) represented as the direct product of an ordered 3-dimensional simplex and the double coset SU(2) × SU(2)SU(4)/T&sup(3) . Within this framework, the subset S&sub(E2×2) ⊂ E&sub(2×2) corresponding to the rank-4 separable 2-qubit states is described as a semialgebraic variety given by a system of 3rd and 4th order polynomial inequalities in eigenvalues of the density matrix, whereas the polynomials coefficients are trigonometric functions defined over a direct product of two regular octahedra.



Спец.(статьи,препринты) = С 323 а - Фундаментальные вопросы квантовой механики. Скрытые параметры. Парадоксы. Теория измерений. Квантовые компьютеры
ОИЯИ = ОИЯИ (JINR)2025