Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций
Конференция: International Symposium on Quantum Informatics; Moscow, RUSSIA; Moscow, RUSSIA
Год издания: 2008
Идентификатор DOI: 10.1117/12.801907
Ключевые слова: entanglement; spin chain; Bell states; teleportation, Bell states, Entanglement, Spin chain, Teleportation, Computer networks, Network protocols, Standards, Dipole dipole, High temperature (HT), Quantum informatics, quantum teleportation, Spin temperatures, teleportation protocol, Threshold value(T), Two qubit, Nuclear magnetic resonance
Аннотация: In this paper we study the influence of pulse NMR on the usefulness of the entanglement in a two-qubit XXZ chain at different temperatures of the Zeeman and dipole-dipole reservoirs as resource for quantum teleportation via the standard teleportation protocol. We show that the nonzero entanglement produced at a high temperature andПоказать полностьюthe initial polarization exceeding some threshold value after a (pi/2)(y) pulse of RF field is an useful resource. We also report on the exact calculation of the necessary and sufficient conditions of entanglement for an ensemble of spin pairs under non-equilibrium states.
Журнал: QUANTUM INFORMATICS 2007
Выпуск журнала: Vol. 7023
ISSN журнала: 0277786X
Место издания: BELLINGHAM
Издатель: SPIE-INT SOC OPTICAL ENGINEERING