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
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
摘要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.
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.
YANG Wen;ZENG Zhi. Structure and Spectrum of Binary Classic Systems Confined in a Parabolic Trap[J]. 中国物理快报, 2009, 26(4): 45204-045204.
YANG Wen, ZENG Zhi. Structure and Spectrum of Binary Classic Systems Confined in a Parabolic Trap. Chin. Phys. Lett., 2009, 26(4): 45204-045204.
[1] Grimes C C and Adams G 1979 Phys. Rev. Lett. 42 795 [2] Ashoori R C 1996 Nature 379 413 [3] Neser S, Bechinger C, Leiderer P and Palberg T 1997 Phys. Rev. Lett. 79 2348 [4] Golosovsky M, Saado Y and Davidov D 2002 Phys. Rev.E 65 061405 [5] Chu J H and I L 1994 Phys. Rev. Lett. 72 4009 [6] Xie B S and Yang Z A 2002 Phys. Plasmas 9 4851 [7] Bedanov V M and Peeters F M 1994 Phys. Rev. B 49 2667 [8] Schweigert V A and Peeters F M 1995 Phys. Rev. B 51 7700 [9] Partoens B and Peeters F M 1997 J. Phys.: Condens.Matter 9 5383 [10] Kong M, Partoens B and Peeters F M 2003 Phys. Rev.E 67 021608 [11] Kong M, Partoens B and Peeters F M 2003 New J.Phys. 5 23 [12] Bubeck R, Bechinger C, Neser S and Leiderer P 1999 Phys. Rev. Lett. 82 3364 [13] Schweigert I V, Schweigert V A and Peeters F M 2000 Phys. Rev. Lett. 84 4381 [14] Kong M, Partoens B, Matulis A and Peeters F M 2004 Phys. Rev. E 69 036412 [15] Mangold K, Birk J, Leiderer P and Bechinger C 2004 Phys. Chem. Chem. Phys. 6 1623 [16] Nelissen K, Partoens B, Schweigert I and Peeters F M 2006 Europhys. Lett. 746 1046 [17] Nelissen K, Partoens B and Peeters F M 2004 Phys.Rev. E 69 046605 [18] Grzybowski B A, Jiang X, Stone H A and Whitesides G M2001 Phys. Rev. E 64 011603 [19] Ferreira W P, Munarin F F, Nelissen K, Costa Filho R N,Peeters F M and Farias G A 2005 Phys. Rev. E 72 021406 [20] Grzybowski B A, Stone H A and Whitesides G M 2000 Nature 405 1033 [21] Hornek{\aer L, Kj{\aergaard N, Thommesen A M andDrewsen M 2001 Phys. Rev. Lett. 86 1994 [22] Liu Y H, Chen Z Y, Yu M Y, Wang L and Bogaerts A 2006 Phys. Rev. E 73 047402
2009, Vol. 26 
