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arXiv · 1003.0468

Entropy, fidelity, and double orthogonality for resonance states in two-electron quantum dots

Federico M. Pont·Omar Osenda·Pablo Serra·Julio H. Toloza
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Abstract

Resonance states of a two-electron quantum dot are studied using a variational expansion with both real basis-set functions and complex scaling methods. The two-electron entanglement (linear entropy) is calculated as a function of the electron repulsion at both sides of the critical value, where the ground (bound) state becomes a resonance (unbound) state. The linear entropy and fidelity and double orthogonality functions are compared as methods for the determination of the real part of the energy of a resonance. The complex linear entropy of a resonance state is introduced using complex scaling formalism.

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Federico M. Pont, Omar Osenda, Pablo Serra, Julio H. Toloza. 2010-03-01. Entropy, fidelity, and double orthogonality for resonance states in two-electron quantum dots. https://doi.org/10.1103/physreva.81.042518

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