Long-Range Interaction Enhanced Adiabatic Quantum Computers
Long-Range Interaction Enhanced Adiabatic Quantum Computers
复制标题
远距离交互增强型绝热量子计算机
DOI:
10.1088/0256-307x/37/12/120301
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发表时间:
2020-12
影响因子:
3.5
通讯作者:
Zhang Wenxian
中科院分区:
文献类型:
--
作者:
Shi Anqi;Guan Haoyu;Zhang Jun;Zhang Wenxian
A quantum computer is not necessarily alone, e.g., thousands and millions of quantum computers are simultaneously working together for adiabatic quantum computers based on nuclear spins. Long-range interaction is inevitable between these nuclear spin qubits. Here we investigate the effect of long-range dipolar interaction between different adiabatic quantum computers. Our analytical and numerical results show that the dipolar interaction can enhance the final fidelity in adiabatic quantum computation for solving the factorization problem, when the overall interaction is negative. The enhancement will become more prominent if a single quantum computer encounters an extremely small energy gap which occurs more likely for larger-size systems.
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