arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.13283cond-mat.mtrl-sciphysics.chem-phquant-ph
收藏

金刚石缺陷自旋量子比特强关联态的第一性原理研究

First-principles Studies of Strongly Correlated States in Defect Spin Qubits in Diamond

He Ma, Nan Sheng, Marco Govoni, Giulia Galli

摘要:

利用最近发展起来的量子嵌入理论,我们对金刚石中自旋缺陷的强关联态进行了第一性原理计算。在这个理论中,有效的哈密顿量被构造出来,可以用经典计算机和量子计算机来求解;后者比前者保证了一个更有利的尺度作为系统大小的函数。特别地,我们报道了金刚石中的中性IV族空位复合物的研究,并讨论了它们的强关联自旋单重态和自旋三重态激发态。我们的研究结果提供了有价值的预测实验,旨在光学操纵这些缺陷的量子信息技术的应用。

英文摘要:

Using a recently developed quantum embedding theory, we present first principles calculations of strongly correlated states of spin defects in diamond. Within this theory, effective Hamiltonians are constructed, which can be solved by classical and quantum computers; the latter promise a much more favorable scaling as a function of system size than the former. In particular, we report a study of the neutral group-IV vacancy complexes in diamond, and we discuss their strongly-correlated spin-singlet and spin-triplet excited states. Our results provide valuable predictions for experiments aimed at optical manipulation of these defects for quantum information technology applications.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑