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Paper   IPM / P / 6742
School of Physics
  Title:   Charged Bosons in A Quasi-One-Dimensional System
1.  B. Tanatar
2.  B. Davoudi
3.  M. Kohandel
  Status:   Published
  Journal: Phys. Rev. B
  No.:  19
  Vol.:  62
  Year:  2000
  Pages:   12597-12600
  Supported by:  IPM
The ground-state properties of a system of charged bosons in a quasi-one-dimensional model with a neutralizing background are investigated within the hypernetted-chain approximation. Strong correlation effects drive the system from a homogeneous fluid phase toward a more ordered structure akin to Wigner crystallization in higher-dimensional charged quantum systems. The ordered phase of charged bosons is signaled by the development of a peak in the static structure factor, which is analyzed as a function of the density and the lateral width of the one-dimensional structure. We also calculate the pair-distribution function, the ground-state energy, and the local-field correction, and compare our results with other theoretical approaches.

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