Phys. Rev. A 69, 054302 (2004) [4 pages]Quantum information: Jaynes and Shannon entropies in a two-electron entangled artificial atomReceived 19 September 2003; revised 28 January 2004; published 12 May 2004 In the context of quantum information, both Shannon entropy and the different Jaynes entropy for a two-electron “entangled artificial” atom proposed by Moshinsky are studied here. The Jaynes entropy in this model is shown to be intimately related to the correlation kinetic energy. A generalization of the customary Shannon entropy based on the electron density is then proposed in terms of the electron pair correlation function. Both definitions behave in a similar way to the Jaynes entropy when considered as a function of the strength of the model electron-electron interaction. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.69.054302
DOI:
10.1103/PhysRevA.69.054302
PACS:
03.67.−a
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