Entropy, fidelity, and double orthogonality for resonance states in two-electron quantum dots
Quantum Physics
2010-04-29 v1
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.
Keywords
Cite
@article{arxiv.1003.0468,
title = {Entropy, fidelity, and double orthogonality for resonance states in two-electron quantum dots},
author = {Federico M. Pont and Omar Osenda and Pablo Serra and Julio H. Toloza},
journal= {arXiv preprint arXiv:1003.0468},
year = {2010}
}