Spin Switch and Qubit Register from a Spin Particle Controlled by a Time-Dependent Magnetic Field

Chin. Phys. Lett.

2004, Vol. 21

Issue (5): 778-781 DOI:

Original Articles

Spin Switch and Qubit Register from a Spin Particle Controlled by a Time-Dependent Magnetic Field

WANG Shun-Jin^1,2;JIA Cheng-Long²;AN Jun-Hong²;LUO Hong-Gang^2,3

¹Department of Physics, Sichuan University, Chengdu 610064 ²Department of Modern Physics, Lanzhou University, Lanzhou 730000 ³¹Institute of Theoretical Physics, Chinese Academy of Sciences,Beijing 100080

Cite this article:

WANG Shun-Jin, JIA Cheng-Long, AN Jun-Hong et al 2004 Chin. Phys. Lett. 21 778-781

Download: PDF(210KB)
Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks

Abstract A spin particle subjected to any time-dependent magnetic field is investigated in detail at different magnetic field configurations. Spin flip probability, spin alignment, cyclic and noncyclic nonadiabatic geometric phases are calculated exactly and their analytical expressions are presented. Our theoretical study shows that a spin particle controlled by a resonant time-dependent magnetic field can be used as efficient controllable devices of spin switch or qubit register.

Keywords: 03.67.Lx 03.65.Fd 03.65.Vf

Published: 01 May 2004

PACS:	03.67.Lx	(Quantum computation architectures and implementations)
	03.65.Fd	(Algebraic methods)
	03.65.Vf	(Phases: geometric; dynamic or topological)

TRENDMD:

URL:

https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2004/V21/I5/0778

Service
	E-mail this article
	E-mail Alert
	RSS
Articles by authors
	WANG Shun-Jin
	JIA Cheng-Long
	AN Jun-Hong
	LUO Hong-Gang

Related articles from Frontiers Journals

[1]	WANG Qiang, YE Chong, FU Li-Bin. Quantum Cyclotron Orbits of a Neutral Atom Trapped in a Triple Well with a Synthetic Gauge Field[J]. Chin. Phys. Lett., 2012, 29(6): 778-781
[2]	LIAN Jin-Ling, ZHANG Yuan-Wei, LIANG Jiu-Qing. Macroscopic Quantum States and Quantum Phase Transition in the Dicke Model[J]. Chin. Phys. Lett., 2012, 29(6): 778-781
[3]	GUO Yu, LUO Xiao-Bing. Quantum Teleportation between Two Distant Bose–Einstein Condensates[J]. Chin. Phys. Lett., 2012, 29(6): 778-781
[4]	YAN Long,FENG Xun-Li,ZHANG Zhi-Ming,LIU Song-Hao. An Extra Phase for Two-Mode Coherent States Displaced in Noncommutative Phase Space**[J]. Chin. Phys. Lett., 2012, 29(4): 778-781
[5]	CAO Gang, WANG Li, TU Tao, LI Hai-Ou, XIAO Ming, GUO Guo-Ping. Pulse Designed Coherent Dynamics of a Quantum Dot Charge Qubit[J]. Chin. Phys. Lett., 2012, 29(3): 778-781
[6]	CHEN Liang, WAN Wei, XIE Yi, ZHOU Fei, FENG Mang. Microscopic Surface-Electrode Ion Trap for Scalable Quantum Information Processing[J]. Chin. Phys. Lett., 2012, 29(3): 778-781
[7]	Hassanabadi Hassan, Yazarloo Bentol Hoda, LU Liang-Liang. Approximate Analytical Solutions to the Generalized Pöschl–Teller Potential in D Dimensions[J]. Chin. Phys. Lett., 2012, 29(2): 778-781
[8]	CHEN Qing-Hu, , LI Lei, LIU Tao, WANG Ke-Lin. The Spectrum in Qubit-Oscillator Systems in the Ultrastrong Coupling Regime**[J]. Chin. Phys. Lett., 2012, 29(1): 778-781
[9]	HOU Shi-Yao, CUI Jing-Xin, LI Jun-Lin . Experimental Realization of Braunstein's Weight-Decision Algorithm**[J]. Chin. Phys. Lett., 2011, 28(9): 778-781
[10]	XIE Yi, ZHOU Fei, CHEN Liang, WAN Wei, FENG Mang . Micromotion Compensation and Photoionization of Ions in a Linear Trap**[J]. Chin. Phys. Lett., 2011, 28(9): 778-781
[11]	ZHANG Ai-Ping, QIANG Wen-Chao, LING Ya-Wen, XIN Hong, YANG Yong-Ming . Geometric Phase for a Qutrit-Qubit Mixed-Spin System**[J]. Chin. Phys. Lett., 2011, 28(8): 778-781
[12]	WANG Chuan, , HAO Liang, ZHAO Lian-Jie . Implementation of Quantum Private Queries Using Nuclear Magnetic Resonance**[J]. Chin. Phys. Lett., 2011, 28(8): 778-781
[13]	LIN Bing-Sheng, HENG Tai-Hua . Energy Spectra of the Harmonic Oscillator in a Generalized Noncommutative Phase Space of Arbitrary Dimension**[J]. Chin. Phys. Lett., 2011, 28(7): 778-781
[14]	XUE Peng . Quantum Computing via Singlet-Triplet Spin Qubits in Nanowire Double Quantum Dots[J]. Chin. Phys. Lett., 2011, 28(7): 778-781
[15]	ZHANG Ji-Ying, ZHOU Zheng-Wei, GUO Guang-Can . Eliminating Next-Nearest-Neighbor Interactions in the Preparation of Cluster State**[J]. Chin. Phys. Lett., 2011, 28(5): 778-781

Viewed

Full text

Abstract