Robust quantum-network memory based on spin qubits in isotopically engineered diamond
Robust quantum-network memory based on spin qubits in isotopically engineered diamond
复制标题
基于同位素工程金刚石中的自旋量子位的鲁棒量子网络存储器
DOI:
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发表时间:
2021
影响因子:
7.6
通讯作者:
T. Taminiau
中科院分区:
文献类型:
--
作者:
C. Bradley;S. D. Bone;P. Møller;S. Baier;M. Degen;S. Loenen;H. Bartling;M. Markham;D. Twitchen;R. Hanson;David Elkouss;T. Taminiau
Quantum networks can enable quantum communication and modular quantum computation. A powerful approach is to use multi-qubit nodes that provide quantum memory and computational power. Nuclear spins associated with defects in diamond are promising qubits for this role. However, dephasing during optical entanglement distribution hinders scaling to larger systems. Here, we show that a 13 C-spin quantum memory in isotopically engineered diamond is robust to the optical link operation of a nitrogen-vacancy centre. The memory lifetime is improved by two orders-of-magnitude upon the state-of-the-art, surpassing reported times for entanglement distribution. Additionally, we demonstrate that the nuclear-spin state can survive ionisation and recapture of the nitrogen-vacancy electron. Finally, we use simulations to show that combining this memory with previously demonstrated entanglement links and gates can enable key network primitives, such as deterministic non-local two-qubit gates, paving the way for test-bed quantum networks capable of investigating complex algorithms and error correction.
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影响因子:
56.9
作者:
Sipahigil, A.;Evans, R. E.;Lukin, M. D.
通讯作者:
Lukin, M. D.
影响因子:
3.7
作者:
Guichard R
通讯作者:
Guichard R
影响因子:
8.6
作者:
L. J. Stephenson;D. P. Nadlinger;B. C. Nichol;S. An;P. Drmota;T. Ballance;K. Thirumalai;J. Goodwin;D. Lucas;C. Ballance
通讯作者:
L. J. Stephenson;D. P. Nadlinger;B. C. Nichol;S. An;P. Drmota;T. Ballance;K. Thirumalai;J. Goodwin;D. Lucas;C. Ballance
影响因子:
4
作者:
Hadden, J. P.;Harrison, J. P.;Rarity, J. G.
通讯作者:
Rarity, J. G.
影响因子:
12.5
作者:
Choi, Joonhee;Zhou, Hengyun;Lukin, Mikhail D.
通讯作者:
Lukin, Mikhail D.