Quantum entanglement control of electron-phonon systems by light irradiation

Kunio Ishida, Hiroaki Matsueda, Akira Kamada

研究成果: ジャーナルへの寄稿学術論文査読

1 被引用数 (Scopus)

抄録

We numerically study the dynamics of quantum entanglement between interacting electron-phonon and qubit-spin systems under photoirradiation, employing a model of multiple spins and boson modes. The interplay of the antiferromagnetic exchange and electron-phonon interactions provides us with a phase diagram, wherein each phase is characterized by the ground state property of the electron-phonon system. Light irradiation of the electron-phonon system facilitates the generation of quantum entanglement, according to the spin configuration and the phonon state in the ground state. Analyses using the quantum mutual information and the singular values of the reduced density matrix indicate that the quantum mechanical effect of the irradiated light appears in the state of the material.

本文言語英語
ページ(範囲)108-124
ページ数17
ジャーナルFaraday Discussions
237
DOI
出版ステータス出版済み - 2022 4月 5

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