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"Engineering of entanglement andspin state transfer via quantum chains of atomic spins at large separations", Scientific Reports 8, 14118 (2018)статья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 24 октября 2018 г.
- Авторы: Bazhanov Dmitry I., Sivkov Ilia N., Stepanyuk Valeri S.
- Журнал: Scientific reports
- Том: 8
- Год издания: 2018
- Издательство: Nature Publishing Group
- Местоположение издательства: United Kingdom
- Первая страница: 14118-1
- Последняя страница: 14118-11
- DOI: 10.1038/s41598-018-32145-3
- Аннотация: Several recent experiments have shown that long-range exchange interactions can determine collective magnetic ground states of nanostructures in bulk and on surfaces. The ability to generate and control entanglement in a system with long-range interaction will be of great importance for future quantum technology. An important step forward to reach this goal is the creation of entangled states for spins of distant magnetic atoms. Herein, the generation of long-distance entanglement between remote spins at large separations in bulk and on surface is studied theoretically, based on a quantum spin Hamiltonian and time-dependent Schrödinger equation for experimentally realized conditions. We demonstrate that long-distance entanglement can be generated between remote spins by using an appropriate quantum spin chain (a quantum mediator), composed by sets of antiferromagnetically coupled spin dimers. Ground state properties and quantum spin dynamics of entangled atoms are studied. We demonstrate that one can increase or suppress entanglement by adding a single spin in the mediator. The obtained result is explained by monogamy property of entanglement distribution inside a quantum spin system. We present a novel approach for non-local sensing of remote magnetic adatoms via spin entanglement.
- Добавил в систему: Бажанов Дмитрий Игоревич