English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We investigate an optically driven quantum computer based on electric dipoletransitions within coupled single-electron quantum dots. Our quantum registerconsists of a freestanding n-type pillar containing a series of pair wisecoupled asymmetric quantum dots, each with a slightly different energystructure, and with grounding leads at the top and bottom of the pillar.Asymmetric quantum wells confine electrons along the pillar axis and anegatively biased gate wrapped around the center of the pillar allows forelectrostatic confinement in the radial direction. We self-consistently solvecoupled Schrodinger and Poisson equations and develop a design for athree-qubit quantum register. Our results indicate that a single gate electrodecan be used to localize a single electron in each of the quantum dots. Adjacentdots are strongly coupled by electric dipole-dipole interactions arising fromthe dot asymmetry, thus enabling rapid computation rates. The dots are tailoredto minimize dephasing due to spontaneous emission and phonon scattering and tomaximize the number of computation cycles. The design is scalable to a largenumber of qubits.Comment: 11 figure

Scalable solid-state quantum computer based on quantum dot pillar structures