3 papers
quant-ph2026
Perfect pure quantum state transfer via state restoring and ancilla measurement
E. B. Fel'dman, J. Wu, A. I. Zenchuk
We propose the protocol for perfect state transfer of an arbitrary pure quantum state along the spin-1/2 chain governed by the Hamiltonian preserving the excitation number in the s…
quant-ph2026
Influence of environment on quantum correlations in two-spin systems with dipole-dipole interactions
G. A. Bochkin, E. B. Fel'dman, E. I. Kuznetsova +1
An influence of environment on quantum correlations (entanglement and quantum discord) is studied in a two-spin-1/2 system with dipole-dipole interactions on the basis of Lindblad…
quant-ph2024
One-excitation spin dynamics in homogeneous closed chain governed by XX-Hamiltonian
E. B. Fel'dman, E. I. Kuznetsova, A. I. Zenchuk
We analytically investigate the one-excitation spin dynamics in a homogeneous closed spin-1/2 chain via diagonalization of the one-excitation block of the XX-Hamiltonian, which all…