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arXiv quant-ph/0311178quant-ph
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基于自旋3/2的富勒烯量子信息处理中双量子位门的选择脉冲实现

Selective pulse implementation of two-qubit gates for spin-3/2 based fullerene quantum information processing

M. Feng, J. Twamley

摘要:

我们提出了两种在内嵌富勒烯$N@C_{60}$或$P@C_{60}$上实现双量子比特量子门的可行方案。量子位存储在掺杂原子$N$或$P$的电子自旋自由度中。利用两个相邻富勒烯之间的磁偶极耦合,利用选择性微波脉冲和再聚焦技术实现了两量子比特受控非门和两量子比特条件相位门。我们将讨论为使我们的建议具有普遍性而采取的其他必要步骤。我们还将表明,我们的建议是有用的量子门控和量子信息从基于自旋的量子比特状态的读出。

英文摘要:

We propose two potentially practical schemes to carry out two-qubit quantum gates on endohedral fullerenes $N@C_{60}$ or $P@C_{60}$. The qubits are stored in electronic spin degrees of freedom of the doped atom $N$ or $P$. By means of the magnetic dipolar coupling between two neighboring fullerenes, the two-qubit controlled-NOT gate and the two-qubit conditional phase gate are performed by selective microwave pulses assisted by refocusing technique. We will discuss the necessary additional steps for the universality of our proposal. We will also show that our proposal is useful for both quantum gating and the readout of quantum information from the spin-based qubit state.

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。

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