| PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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Structure and Spectrum of Binary Classic Systems Confined in a Parabolic Trap |
| YANG Wen1,2, ZENG Zhi1 |
| 1Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, PO Box 1129, Hefei 2300312Graduate School of the Chinese Academy of Sciences, Beijing 100049 |
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| Cite this article: |
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YANG Wen, ZENG Zhi 2009 Chin. Phys. Lett. 26 045204 |
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Abstract The static and dynamic properties of the two-dimensional classic system of two-species interacting charged particles in a parabolic trap are studied. The ground state energy and configuration for different kinds of binary systems are obtained by Monte Carlo simulation and Newton optimization. The
spectrum and normal modes vectors can be gained by diagonalizing the ynamical matrix of the system. It is found that the total particle number, particle number and mass-to-charge ratio of each species are decisive factors for the system structure and spectrum. The three intrinsic normal modes of single species Coulomb clusters are inherent, concluded from our numerical simulations and analytical results.
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| Keywords:
52.27.Lw
36.40.Wa
36.40.Sx
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Received: 19 January 2009
Published: 25 March 2009
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| PACS: |
52.27.Lw
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(Dusty or complex plasmas; plasma crystals)
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36.40.Wa
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(Charged clusters)
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36.40.Sx
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(Diffusion and dynamics of clusters)
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