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Title: Quantum entanglement for helium atom in the Debye plasmas

In the present work, we present an investigation on quantum entanglement of the two-electron helium atom immersed in weakly coupled Debye plasmas, modeled by the Debye-Hückel, or screened Coulomb, potential to mimic the interaction between two charged particles inside the plasma. Quantum entanglement is related to correlation effects in a multi-particle system. In a bipartite system, a measurement made on one of the two entangled particles affects the outcome of the other particle, even if such two particles are far apart. Employing wave functions constructed with configuration interaction B-spline basis, we have quantified von Neumann entropy and linear entropy for a series of He {sup 1,3}S{sup e} and {sup 1,3}P{sup o} states in plasma-embedded helium atom.
Authors:
 [1] ;  [2] ;  [3] ;  [1]
  1. Institute of Atomic and Molecular Sciences, Academia Sinica, P. O. Box 23-166, Taipei 106, Taiwan (China)
  2. (China)
  3. Department of Physics, Fu Jen Catholic University, New Taipei City 24205, Taiwan (China)
Publication Date:
OSTI Identifier:
22408186
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 3; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ATOMS; CHARGED PARTICLES; CONFIGURATION INTERACTION; CORRELATIONS; COULOMB FIELD; DEBYE LENGTH; ENTROPY; HELIUM; PARTICLE INTERACTIONS; PLASMA; QUANTUM ENTANGLEMENT; WAVE FUNCTIONS; WEAK-COUPLING MODEL