3 papers
quant-ph2021
Quantum entanglement in the anisotropic Heisenberg model with multicomponent DM and KSEA interactions
A. V. Fedorova, M. A. Yurischev
Using group-theoretical approach we found a family of four nine-parameter quantum states for the two-spin-1/2 Heisenberg system in an external magnetic field and with multiple comp…
quant-ph2019
Super-quantum discord in ferromagnetic and antiferromagnetic materials
A. V. Fedorova, T. Byrnes, A. N. Pyrkov
Super-quantum discord is an extension of the quantum discord concept where weak measurements are made instead of projective measurements. We study the temperature behavior of the s…
quant-ph2018
Theoretical investigations of quantum correlations in NMR multiple-pulse spin-locking experiments
S. A. Gerasev, A. V. Fedorova, E. B. Fel'dman +1
Quantum correlations are investigated theoretically in a two-spin system with the dipole-dipole interactions in the NMR multiple-pulse spin-locking experiments. We consider two sch…