半导体量子点中电子态的绝热捷径控制

doi:10.12066/j.issn.1007-2861.2273

摘要/Abstract

摘要：

量子态的精确制备和相干控制是量子信息处理和固态量子计算中的重要任务. 近年来, 量子绝热捷径技术已经被广泛用于原子的冷却、转移等量子信息处理过程, 旨在加快绝热慢过程, 提高量子态制备和传输的保真度. 介绍了量子绝热捷径技术中不变量反控制法、量子无摩擦动力学等不同方案在半导体量子点中电子态快速且高保真的控制应用, 并分析了各类方法以及环境退相干等系统因素对量子态操控的影响.

关键词: 量子绝热捷径技术, 半导体量子点, 电子电荷态, 电子自旋态

Abstract:

Fast and accurate quantum state preparation and manipulation are important tasks in the field of quantum information processing and solid-state-based quantum computing. In recent years, shortcuts to adiabaticity have been widely used in atom cooling, transfer, and other quantum information processing, aiming to accelerate slow adiabatic processes. In this study, fast, robust control schemes for electron quantum states in different semiconductor quantum dot systems are reviewed using shortcuts to adiabaticity. The different methods include invariant-based inverse engineering and transitionless quantum driving. The various protocols and effects of environmental decoherence and other system factors on quantum state manipulation are analysed.

Key words: shortcuts to adiabaticity, semiconductor quantum dot, electron charge state, electron spin state

中图分类号:

O413

班玥, 李欣和, 陈玺. 半导体量子点中电子态的绝热捷径控制[J]. 上海大学学报(自然科学版), 2021, 27(1): 1-17.

BAN Yue, LI Xinhe, CHEN Xi. Shortcuts to adiabatic control of electron states in semiconductor quantum dots[J]. Journal of Shanghai University（Natural Science Edition）, 2021, 27(1): 1-17.

图/表 3

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