Modeling and Control of Quantum Measurement-Induced Backaction in Double Quantum Dots

Modeling and Control of Quantum Measurement-Induced Backaction in Double Quantum Dots
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双量子点中量子测量引起的反作用的建模和控制

DOI:
10.1109/tcst.2018.2871790
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发表时间:
2017-12
影响因子:
4.8
通讯作者:
Daoyi Dong
Daoyi Dong
中科院分区:
计算机科学2区
文献类型:
--
作者:
Wei Cui;Daoyi Dong

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量子测量会干扰被测量的量子系统,这被称为测量诱导反作用。在本文中,我们考虑一个由附近量子点接触监测的双量子点,其中测量诱导反作用发挥(此处原文“play”形式有误,应为“plays”,整句完整意思为:其中测量诱导反作用发挥着……作用 )
Quantum measurements disturb the quantum system being measured, and this is known as measurement-induced backaction. In this paper, we consider a double quantum dot monitored by a nearby quantum point contact, where the measurement-induced backaction plays an important role. Taking advantage of the quantum master equation approach, we calculate the tunneling current and propose a simple feedback-control law to realize and stabilize the tunneling current. Theoretical analysis and numerical simulations show that the feedback control law can make the current quickly convergent to the desired value.
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