84 citations · 507 across the 53 of their papers we have counts for
15 papers · 1 filter
Single-spin entanglement
G. B. Furman, V. M. Meerovich, V. L. Sokolovsky
We show that the operators and the quadrupole and Zeeman Hamiltonians for a spin (3/2) can be represented in terms for a system of two coupling fictitious spins (1/2) using the Kro…
Zero field entanglement in dipolar coupling spin system at negative temperatures
Gregory B. Furman, Victor M. Meerovich, Vladimir L. Sokolovsky
A dipolar coupled spin system can achieve internal thermodynamic equilibrium states at negative absolute temperature. We study analytically and numerically the temperature dependen…
Quantum entanglement at negative temperature
G. B. Furman, V. M. Meerovich, V. L. Sokolovsky
An isolated spin system that is in internal thermodynamic equilibrium and that has an upper limit to its allowed energy states can possess a negative temperature. We calculate the…
Fading entanglement near equilibrium state
Gregory B. Furman, Victor M. Meerovich, Vladimir L. Sokolovsky
It was recently shown that entanglement in quantum systems being in a non-equilibrium state can appear at much higher temperatures than in an equilibrium state. However, any system…
Adiabatic demagnetization and generation of entanglement in spin systems
Gregory B. Furman, Victor M. Meerovich, Vladimir L. Sokolovsky
We study the entanglement emergence in a dipolar-coupled nuclear spin-1/2 system cooled using the adiabatic demagnetization technique. The unexpected behavior of entanglement for t…
Entanglement in nuclear quadrupole resonance
Gregory Furman, Victor Meerovich, Vladimir Sokolovsky
Entangled quantum states are an important element of quantum information techniques. We determine the requirements for states of quadrupolar nuclei with spins >1/2 to be entangled.…