FLUCTUATIONS OF CONDUCTANCE PEAK SPACINGS IN THE COULOMB-BLOCKADE REGIME - ROLE OF ELECTRON-ELECTRON INTERACTION

Authors
BLANTER YM MIRLIN AD MUZYKANTSKII BA
Citation
Ym. Blanter et al., FLUCTUATIONS OF CONDUCTANCE PEAK SPACINGS IN THE COULOMB-BLOCKADE REGIME - ROLE OF ELECTRON-ELECTRON INTERACTION, Physical review letters, 78(12), 1997, pp. 2449-2452
Citations number
15
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
78
Issue
12
Year of publication
1997
Pages
2449 - 2452
Database
ISI
SICI code
0031-9007(1997)78:12<2449:FOCPSI>2.0.ZU;2-C
Abstract
We study influence of electron-electron interaction on statistics of C oulomb blockade peak spacings in disordered quantum dots. It is shown that the interaction combined with fluctuations of eigenfunctions of t he Fermi sea enhances the peak spacing fluctuations, in accordance wit h recent experiments. In addition, account of the spin degrees of free dom leads to a pronounced odd-even structure for weak interaction (e(2 )/epsilon much less than upsilon(F)); in the opposite case (e(2)/epsil on greater than or similar to upsilon(F)) this structure is washed out .