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International Journal of Theoretical Physics

, Volume 58, Issue 4, pp 1262–1268 | Cite as

Formation of Information Entropy in Spinor Bose-Einstein Condensates

  • Qiang ZhaoEmail author
  • Hong Shen
  • Hongyan Liu
Article

Abstract

In this paper, we investigate the information entropy formation in a spinor (F = 1) Bose-Einstein condensates (BECs) by numerically solving the three-dimensional Gross-Pitaevskii equation (GPE). The effect of the spin-independent interaction \({c}_{0}^{\prime }\), spin-dependent interaction \({c}_{2}^{\prime }\) and external magnetic field Bext is discussed. We reveal that the position component Sr and total entropy S increase and the momentum component Sk decreases with increasing the \({c}_{0}^{\prime }\) or Bext. Moreover, the order parameter δ decreases with increasing \({c}_{0}^{\prime }\) or Bext, implying that the system becomes a more disordered state. However, for the side of \({c}_{2}^{\prime }\), we find that the information entropy keep almost constant irrespective of \({c}_{2}^{\prime }\), and the extent of disorder is also invariability.

Keywords

Information entropy Spinor Bose-Einstein condensates 

Notes

Acknowledgements

The authors would like to thank Pan Hu for useful discussions. Q. Z. is supported by the Applied Basic Research Programs of Tangshan (Grant No. 18130219a). H. Y. L is supported by the Natural Science Foundation of Shandong province (Grant No. ZR2017MEM012).

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Applied PhysicsNorth China University of Science and TechnologyTangshanChina
  2. 2.Department of Modern Technology and Education CenterNorth China University of Science and TechnologyTangshanChina
  3. 3.School of Physics and Electronic EngineeringHeze UniversityHezeChina

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