Investigation of Entanglement in the Moshinsky Atom

Document Type : Research Paper

Authors

1 Professor, Department of Physics, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran

2 Assistant Professor, Department of Physics, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran

3 M. Sc. Student, Department of Physics, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran.

Abstract

One of the most critical aspects of studying entanglement states is quantifying the degree of entanglement. One of the entanglement measures for pure states is Van- Neumann entropy, which is why Van-Neumann entropy is also called entanglement entropy. In this work, to calculate the entanglement of a three-particle atom called the Moshinsky atom; first, the reduced density matrix was calculated and then using the coordinates of the three particles in the lithium atom, the entropy entanglement was calculated. We obtained the entropy of entanglement in terms of the frequency parameter related to the external coordinate field.

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Main Subjects

References

 
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Iranian Journal of Applied Physics
Volume 13, Issue 3 - Serial Number 34
October 2023
Pages 140-162

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History

  • Receive Date: 05 November 2021
  • Revise Date: 22 February 2022
  • Accept Date: 16 May 2023

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