Control Method of Cooling a Charged Particle Pair in a Paul Trap

Chin. Phys. Lett.

2003, Vol. 20

Issue (11): 1924-1927 DOI:

Original Articles

Control Method of Cooling a Charged Particle Pair in a Paul Trap

ZHANG Guang-Cai¹;ZHANG Hong-Jun^1,2

¹Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080 ²CCAST (World Laboratory), PO Box 8730, Beijing 100080

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ZHANG Guang-Cai, ZHANG Hong-Jun 2003 Chin. Phys. Lett. 20 1924-1927

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Abstract We propose a simple feedback cooling method, including both the component feedback and the velocity feedback, for cooling a charged particle pair in a Paul trap. It is found that the system can be cooled to periodic orbits; and if control intensity is strong, the system can be cooled to a one-periodic orbit, which is only in a horizontal plane. The result shows that the cooled system is also robust for noise.

Keywords: 05.45.+b 32.80.Pj

Published: 01 November 2003

PACS:	05.45.+b
	32.80.Pj

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2003/V20/I11/01924

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