Few-Body Systems

, Volume 54, Issue 5–6, pp 629–633 | Cite as

Entanglement of Two Charged Bosons in Strongly Anisotropic Traps

Open Access


Examination of the ground-state correlation properties of two Coulombically interacting bosons confined in strongly anisotropic harmonic potentials is carried out within the framework of the single-mode approximation of the transverse components. The linear entropy of the quasi-one dimensional systems is discussed in dependence on the confinement anisotropy and the interaction strength. A comparison with a strictly one-dimensional limit is performed.


Open Access

This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.


  1. 1.
    Astrakharchik G.E., Girardeau M.D.: Exact ground-state properties of a one-dimensional Coulomb gas. Phys. Rev. B 83, 153303 (2011)ADSCrossRefGoogle Scholar
  2. 2.
    Murphy D.S., McCann J.F., Goold J., Busch Th.: Boson pairs in a one-dimensional split trap. Phys. Rev. A 76, 053616 (2007)ADSCrossRefGoogle Scholar
  3. 3.
    Kościk P., Okopińska A.: Two-electron entanglement in elliptically deformed quantum dots. Phys. Lett. A 374, 3841 (2010)MathSciNetADSMATHCrossRefGoogle Scholar
  4. 4.
    Ghirardi G., Marinatto L.: General criterion for the entanglement of two indistinguishable particles. Phys. Rev. A 70, 012109 (2004)ADSCrossRefGoogle Scholar
  5. 5.
    Kościk P., Okopińska A.: Ground-state correlation properties of charged bosons trapped in strongly anisotropic harmonic potentials. Eur. Phys. J. B85, 9 (2012)ADSGoogle Scholar

Copyright information

© The Author(s) 2012

Authors and Affiliations

  1. 1.Institute of PhysicsJan Kochanowski UniversityKielcePoland

Personalised recommendations