Quantum ac transport through coupled quantum dots

Authors
Ma, ZS Shi, JR Xie, XC
Citation
Zs. Ma et al., Quantum ac transport through coupled quantum dots, PHYS REV B, 62(23), 2000, pp. 15352-15355
Citations number
20
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
62
Issue
23
Year of publication
2000
Pages
15352 - 15355
Database
ISI
SICI code
0163-1829(200012)62:23<15352:QATTCQ>2.0.ZU;2-T
Abstract
We present an analysis of time-dependent transport through coupled double q uantum dots. Analytical formulas are derived for the current-voltage charac teristics of the time-dependent photo-assisted tunneling. The resonance fea tures are observable in both the amplitude and the phase shift of an ac cur rent. We also point out the importance of self-consistent calculation in th e internal potential for constructing a gauge-invariant quantum transport t heory.