106 citations · 866 across the 35 of their papers we have counts for
7 papers · 1 filter
Estimation of the spatial decoherence time in circular quantum dots
Michael Genkin, Erik Waltersson, Eva Lindroth
We propose a simple phenomenological model to estimate the spatial decoherence time in quantum dots. The dissipative phase space dynamics is described in terms of the density matri…
Effects of screened Coulomb impurities on autoionizing two-electron resonances in spherical quantum dots
Michael Genkin, Eva Lindroth
In a recent paper (Phys. Rev. B {\bf 78}, 075316 (2008)), Sajeev and Moiseyev demonstrated that the bound-to-resonant transitions and lifetimes of autoionizing states in spherical…
Fundamental Gates for a Strongly Correlated Two-Electron Quantum Ring
Lene Sælen, Erik Waltersson, J. P. Hansen +1
We demonstrate that conditional as well as unconditional basic operations which are prerequisite for universal quantum gates can be performed with almost 100% fidelity within a str…
Controlled Operations in a Strongly Correlated Two-Electron Quantum Ring
Erik Waltersson, Eva Lindroth, Ingjald Pilskog +1
We have analyzed the electronic spectrum and wave function characteristics of a strongly correlated two-electron quantum ring with model parameters close to those observed in exper…
Many-Body perturbation theory calculations on circular quantum dots
Erik Waltersson, Eva Lindroth
The possibility to use perturbation theory to systematically improve calculations on circular quantum dots is investigated. A few different starting points, including Hartree-Fock,…
Performance of the coupled cluster singles and doubles method on two-dimensional quantum dots
Erik Waltersson, Eva Lindroth
An implementation of the coupled-cluster single- and double excitations (CCSD) method on two-dimensional quantum dots is presented. Advantages and limitations are studied through c…