Fano-Kondo effect in a two-level system with triple quantum dots

被引：26

作者：

Tanamoto, Tetsufumi ^{[1
]}

Nishi, Yoshifumi ^{[1
]}

机构：

[1] Toshiba Co Ltd, Ctr Corp Res & Dev, Adv LSI Lab, Saiwai Ku, Kawasaki, Kanagawa 2128582, Japan

来源：

PHYSICAL REVIEW B | 2007年 / 76卷 / 15期

关键词：

D O I：

10.1103/PhysRevB.76.155319

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We theoretically study the Fano-Kondo effect in a triple quantum dot (QD) system where two QDs constitute a two-level system and the other QD works in a detector with electrodes. We found that the Fano dip is clearly modulated by strongly coupled QDs in a two-level system and a slow detector with no interacting QD. This setup suggests another method of reading out qubit states.

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页数：5

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共 25 条

[1] Kondo and anti-Kondo resonances in transport through nanoscale devices [J].

Aligia, AA ;

Proetto, CR .

PHYSICAL REVIEW B, 2002, 65 (16) :1-6

[2] Kondo resonant spectra in coupled quantum dots [J].

Aono, T ;

Eto, M .

PHYSICAL REVIEW B, 2001, 63 (12)

[3] Conductance dip in the Kondo regime of linear arrays of quantum dots -: art. no. 035402 [J].

Büsser, CA ;

Moreo, A ;

Dagotto, E .

PHYSICAL REVIEW B, 2004, 70 (03) :035402-1

[4] MIXED-VALENCE AS AN ALMOST BROKEN SYMMETRY [J].

COLEMAN, P .

PHYSICAL REVIEW B, 1987, 35 (10) :5072-5116

[5] Qubit measurements with a double-dot detector [J].

Gilad, T. ;

Gurvitz, S. A. .

PHYSICAL REVIEW LETTERS, 2006, 97 (11)

[6] Continuous quantum measurement of two coupled quantum dots using a point contact: A quantum trajectory approach [J].

Goan, HS ;

Milburn, GJ ;

Wiseman, HM ;

Sun, HB .

PHYSICAL REVIEW B, 2001, 63 (12)

[7] Fano resonances in electronic transport through a single-electron transistor [J].

Göres, J ;

Goldhaber-Gordon, D ;

Heemeyer, S ;

Kastner, MA ;

Shtrikman, H ;

Mahalu, D ;

Meirav, U .

PHYSICAL REVIEW B, 2000, 62 (03) :2188-2194

[8] Kondo resonance in a quantum dot molecule -: art. no. 245323 [J].

Güçlü, AD ;

Sun, QF ;

Guo, H .

PHYSICAL REVIEW B, 2003, 68 (24)

[9] Kondo transport through serially coupled triple quantum dots [J].

Jiang, ZT ;

Sun, QF ;

Wang, YP .

PHYSICAL REVIEW B, 2005, 72 (04)

[10] Anti-Kondo resonance in transport through a quantum wire with a side-coupled quantum dot [J].

Kang, KC ;

Cho, SY ;

Kim, JJ ;

Shin, SC .

PHYSICAL REVIEW B, 2001, 63 (11)