Complete structural restoring of transferred multi-qubit quantum state

Информация о цитировании статьи получена из Scopus
Дата последнего поиска статьи во внешних источниках: 16 июня 2022 г.

Авторы: Fel'dman E.B., Pechen A.N., Zenchuk A.I.
Журнал: Physics Letters A
Том: 413
Год издания: 2021
Номер статьи: 127605
DOI: 10.1016/j.physleta.2021.127605
Аннотация: In this work, we study optimal transfer of quantum states via spin chains. We develop the protocol for structural restoring of multi-quantum coherence matrices of multi-qubit quantum states transferred from sender to receiver along a spin-1/2 chain. We also develop a protocol for constructing such 0-order coherence matrix that can be perfectly transferred in this process. The restoring protocol is based on the specially constructed unitary transformation applied to the state of the extended receiver. This transformation for a given length of the chain and Hamiltonian is universally optimal in the sense that ones constructed it can be applied to optimally restore any higher-order coherence matrices.
Добавил в систему: Фельдман Эдуард Беньяминович

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