3 papers
quant-ph2025
Quantum correlations versus spin magnitude: Transition to the classical limit
M. A. Yurischev, E. I. Kuznetsova, Saeed Haddadi
Quantum-classical transitions have long attracted much attention. We study such transitions in quantum spin-(,1/2) systems at thermal equilibrium. Unlike the previous work [Phys…
quant-ph2025
Quantum correlations in general qubit-qudit axially symmetric states
Saeed Haddadi, Elena I. Kuznetsova, M. A. Yurischev
The development and improvement of analytical methods for evaluating nonclassical correlations is one of the most important tasks in quantum information science. In this paper, we…
quant-ph2025
A comparative study of LQU and LQFI in general qubit-qutrit axially symmetric states
M. A. Yurischev, Saeed Haddadi, Mehrdad Ghominejad
We derive the compact closed forms of local quantum uncertainty (LQU) and local quantum Fisher information (LQFI) for hybrid qubit-qutrit axially symmetric (AS) states. This allows…