General quantum phase estimation and calibration of a timepiece in a quantum dot system
General quantum phase estimation and calibration of a timepiece in a quantum dot system
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DOI：
10.1088/0953-8984/19/37/376216
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发表时间：
2007-08
期刊：
影响因子：
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通讯作者：
Ping Dong;Z. Cao
中科院分区：
文献类型：
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作者：
Ping Dong;Z. Cao
提出了一种利用嵌入微腔中的弱耦合双量子点分子实现量子相位估计的物理方案。在同一实现过程中，我们还可以实现基于估计相位的时钟校准。我们利用耦合双量子点分子中的电子-空穴对态来编码量子信息，其中不需要两个量子点完全相同。我们的思想也可以推广到其他系统，如原子、囚禁离子和线性光学系统。
We present a physical scheme for implementing quantum phase estimation via weakly coupled double-quantum-dot molecules embedded in a microcavity. During the same process of implementation, we can also realize the calibration of a timepiece based on the estimated phase. We use the electron–hole pair states in coupled double-quantum-dot molecules to encode quantum information, where the requirement that two quantum dots are exactly identical is not necessary. Our idea can also be generalized to other systems, such as atomic, trapped ion and linear optics systems.