Superradiantlike dynamics of nuclear spins by nonadiabatic electron shuttling

doi:10.1103/PhysRevB.103.155301

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	Superradiantlike dynamics of nuclear spins by nonadiabatic electron shuttling
	Fang, Yinan 2,9; Wang, Ying-Dan ; Fazio, Rosario 1,7; Chesi, Stefano 8
刊名	PHYSICAL REVIEW B
	2021
卷号	103 期号:15 页码:155301
关键词	QUANTUM INFORMATION CHARGE-TRANSFER SILICON MANIPULATION TEMPERATURE DECOHERENCE MECHANISM STORAGE QUBIT
ISSN号	2469-9950
DOI	10.1103/PhysRevB.103.155301
英文摘要	We investigate superradiantlike dynamics of a nuclear-spin bath in contact with an electron shuttle, modeled as a moving quantum dot trapping a single electron. The dot is shuttled between two external reservoirs, where electron-nuclear flip flops are associated with tunneling events. For an ideal model with uniform hyperfine interaction, realized through an isotopically enriched "nuclear-spin island", we discuss in detail the nuclear spin evolution and its relation to superradiance. We then show that the superradiantlike evolution is robust to various extensions of the initial setup, and derive the minimum shuttling time which allows to escape adiabatic spin evolution. We also discuss slow/fast shuttling under the inhomogeneous field of a nearby micromagnet and compare our scheme to a model with stationary quantum dot. Finally, we describe the electrical detection of nuclear entanglement in the framework of Monte Carlo wave-function simulations.
学科主题	Materials Science ; Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27494]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Beijing Computat Sci Res Ctr, Beijing 100193, Peoples R China 2.Abdus Salaam Int Ctr Theoret Phys, Str Costiera 11, I-34151 Trieste, Italy 3.McGill Univ, Dept Phys, 3600 Rue Univ, Montreal, PQ H3A 2T8, Canada 4.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 5.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 6.Univ Chinese Acad Sci, CAS Ctr Excellence Topol Quantum Computat, Beijing 100049, Peoples R China 7.Hunan Normal Univ, Synerget Innovat Ctr Quantum Effects & Applicat, Changsha 410081, Peoples R China 8.Univ Napoli Federico II, Dipartimento Fis, I-80126 Naples, Italy 9.Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China 10.Yunnan Univ, Dept Phys, Kunming 650091, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Fang, Yinan,Wang, Ying-Dan,Fazio, Rosario,et al. Superradiantlike dynamics of nuclear spins by nonadiabatic electron shuttling[J]. PHYSICAL REVIEW B,2021,103(15):155301.
APA	Fang, Yinan,Wang, Ying-Dan,Fazio, Rosario,&Chesi, Stefano.(2021).Superradiantlike dynamics of nuclear spins by nonadiabatic electron shuttling.PHYSICAL REVIEW B,103(15),155301.
MLA	Fang, Yinan,et al."Superradiantlike dynamics of nuclear spins by nonadiabatic electron shuttling".PHYSICAL REVIEW B 103.15(2021):155301.