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arXiv · 2103.13319

Fast qubits of optical frequencies on the rare-earth ions in fluoride crystals and color centers in diamond

Vladimir Hizhnyakov·Vadim Boltrushko·Aleksander Shelkan·Yurii Orlovskii
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Abstract

Fluoride crystals doped with rare-earth ions (REI) and pair centers in diamond for fast ($10^{-9}\rm{s}$) quantum computers (FQC) are proposed. As specific systems for REI doping, we propose $Ca_{1-x}Sr_{x}F_{2}$ crystals and their analogues. The $^{4}f$-states with different total orbital angular moments of these ions serve as two-level systems (qubits). Suitable REIs are proposed as well. It is established that the pair $SiV$ and $GeV$ centers in diamond are promising systems for fast optical quantum computers operating at elevated temperatures.

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Vladimir Hizhnyakov, Vadim Boltrushko, Aleksander Shelkan, Yurii Orlovskii. 2021-03-23. Fast qubits of optical frequencies on the rare-earth ions in fluoride crystals and color centers in diamond. https://arxiv.org/abs/2103.13319

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