Title:
Electronic structure and spectra of few-electron quantum dots

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dc.contributor.advisor Landman, Uzi
dc.contributor.author Li, Yuesong en_US
dc.contributor.committeeMember Chou, Mei-Yin
dc.contributor.committeeMember Michael Pustilnik
dc.contributor.committeeMember Minqiang Li
dc.contributor.committeeMember Constantine Yannouleas
dc.contributor.department Physics en_US
dc.date.accessioned 2007-08-16T17:42:40Z
dc.date.available 2007-08-16T17:42:40Z
dc.date.issued 2007-05-18 en_US
dc.description.abstract Using the method of breaking circular symmetry and the subsequent symmetry restoration via projection techniques, we calculate the ground-state energies and excitation spectra of N-electrons confined in parabolic quantum dots in strong magnetic fields in the medium-size range 10<=N <=30. The physical picture is that of finite rotating electron molecules (REMs) comprising multiple rings, with the rings rotating independently of each other. A derived analytic expression for the energetics is applicable to arbitrary sizes given the corresponding ring configuration of classical point charges. Also by exact diagonalization (EXD) method, we show the spectrum and structure of few electrons, 2<=N<=3, confined in elliptical dots at finite magnetic field. The results suggest the formation of a state of Wigner-molecular properties with spin associated, which has great instructions for the development of quantum register in quantum computing. en_US
dc.description.degree Ph.D. en_US
dc.identifier.uri http://hdl.handle.net/1853/16173
dc.publisher Georgia Institute of Technology en_US
dc.subject Quantum Hall effect en_US
dc.subject REM en_US
dc.subject Quantum computing en_US
dc.subject Quantum dots en_US
dc.title Electronic structure and spectra of few-electron quantum dots en_US
dc.type Text
dc.type.genre Dissertation
dspace.entity.type Publication
local.contributor.advisor Landman, Uzi
local.contributor.corporatename College of Sciences
local.contributor.corporatename School of Physics
relation.isAdvisorOfPublication d4b3b64d-e8d7-4c44-9c13-cb455d469c77
relation.isOrgUnitOfPublication 85042be6-2d68-4e07-b384-e1f908fae48a
relation.isOrgUnitOfPublication 2ba39017-11f1-40f4-9bc5-66f17b8f1539
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