Calculation of the quantum discord in many-qubit systems
A.Y. Chernyavskiy, S.I. Doronin, E.B. Fel'dman
TL;DR
This paper presents the first computation of quantum discord in bipartite systems with up to nine qubits, including an analytical expression for three-qubit systems, and explores its dependence on temperature and structural parameters.
Contribution
It introduces the first calculation of quantum discord in large bipartite qubit systems and derives an analytical formula for three-qubit systems.
Findings
Quantum discord computed for systems up to nine qubits
Analytical expression derived for three-qubit discord
Discord's dependence on temperature and structural parameters studied
Abstract
For the first time, we compute the quantum discord in bipartite systems containing up to nine qubits. An analytical expression is obtained for the discord in a bipartite system with three qubits. The dependence of the discord on the temperature and the structural parameter of the model is studied.
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Taxonomy
TopicsQuantum Information and Cryptography · Quantum Computing Algorithms and Architecture · Quantum Mechanics and Applications