Quick Navigation

Overview Topics Abstract Importance Paper Tools References Reactions Discussion Publication Related

Topics

Quantum Chemistry

Reliability of the Heitler-London approach for the exchange coupling between electrons in semiconductor nanostructures

arXiv
Authors: A. L. Saraiva, M. J. Calderon, Belita Koiller

Year

2007

Paper ID

49881

Status

Preprint

Abstract Read

~2 min

Abstract Words

106

Citations

N/A

Abstract

We calculate the exchange coupling J between electrons in a double-well potential in a two-dimensional semiconductor environment within the Heitler-London (HL) approach. Two functional forms are considered for the double-well potential. We show that by choosing an appropriate and relatively simple single-electron variational wave function it is possible, within the HL approach, to significantly improve the estimates for J. In all cases the present scheme overcomes the artifacts and limitations at short interdot distances, previously attributed to the HL method, where unphysical triplet ground states have been found, and leads to an overall agreement with analytic interpolated expressions for J obtained for a donor-type model potential.

Why This Paper Matters

  • This paper contributes to the Quantum Chemistry research area in the Quantum Articles archive.
  • It adds a 2007 reference point for readers tracking recent quantum research.
  • We calculate the exchange coupling J between electrons in a double-well potential in a two-dimensional semiconductor environment within the Heitler-London (HL) approach.

Paper Tools

Become a member to use research tools

Sign in to open papers, visit source links, share, cite, compare, copy DOI links, request category corrections, and build your reading list.

Become a member Sign in
Show Paper arXiv Publisher Share Cite This Paper Copy URL Compare Copy DOI Add to Reading List Category Correction Request

References & Citation Signals

[1] DOI https://doi.org/arXiv:0706.3354 [2] arXiv https://arxiv.org/abs/0706.3354 [3] Publisher https://arxiv.org/abs/0706.3354

Local Citation Graph (Related-Paper Links)

Current Paper #49881 #69042 Simultaneous Fragment Docking f... #69037 Spin dynamics and ortho-para co... #69012 Projector Quantum Variational A... #69006 Elucidating the Control of Circ...

External citation index: OpenAlex citation signal

Community Reactions

Quick sentiment from readers on this paper.

Score: 0
Likes: 0 Dislikes: 0

Sign in to react to this paper.

Discussion & Reviews (Moderated)

Average Rating: 0.0 / 5 (0 ratings)

No written reviews yet.