Photon-assisted shot noise in mesoscopic conductors

被引：5

作者：

Bagrets, Dmitry ^{[1
]}

Pistolesi, Fabio ^{[1
]}

机构：

[1] Univ Grenoble 1, CNRS, Lab Phys Modelisat Milieux Condenses, F-38042 Grenoble, France

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2007年 / 40卷 / 01期

关键词：

shot-noise; quantum dots; diffusive wires; photon-assisted electron transport;

D O I：

10.1016/j.physe.2007.05.006

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We calculate the low-frequency current noise for AC biased mesoscopic chaotic cavities and diffusive wires. Contrary to what happens for the admittance, the frequency dispersion in noise is determined not by the electric response time (the "RC" time of the circuit), but by the time that electrons need to diffuse through the structure (dwell time or diffusion time). We find that the derivative of the photon-assisted shot noise with respect to the external AC frequency displays a maximum at the Thouless energy scale of the conductor. This dispersion comes from the slow, charge-neutral fluctuations of the non-equilibrium electron distribution function inside the structure. Our theoretical predictions can be verified with present experimental technology. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：123 / 132

页数：10

共 36 条

[1]

ALTSHULER BL, 1994, JETP LETT+, V59, P857

[2] Full current statistics in the regime of weak Coulomb interaction [J].

Bagrets, DA ;

Nazarov, YV .

PHYSICAL REVIEW LETTERS, 2005, 94 (05)

[3] Full current statistics of incoherent "Cold electrons" [J].

Bagrets, DA .

PHYSICAL REVIEW LETTERS, 2004, 93 (23)

[4]

BAGRETS DA, CONDMAT0606775

[5] Full current statistics in diffusive normal-superconductor structures [J].

Belzig, W ;

Nazarov, YV .

PHYSICAL REVIEW LETTERS, 2001, 87 (06) :670061-670064

[6]

BUTTIKER M, 1993, PHYS REV LETT, V70, P4114, DOI 10.1103/PhysRevLett.70.4114

[7] Keldysh action for disordered superconductors [J].

Feigel'man, MV ;

Larkin, AI ;

Skvortsov, MA .

PHYSICAL REVIEW B, 2000, 61 (18) :12361-12388

[8] Coulomb effects on electron transport and shot noise in hybrid normal-metal-superconducting metallic structures [J].

Galaktionov, Artem V. ;

Zaikin, Andrei D. .

PHYSICAL REVIEW B, 2006, 73 (18)

[9] Weak localization in arrays of metallic quantum dots:: Combined scattering matrix formalism and nonlinear σ model [J].

Golubev, Dmitri S. ;

Zaikin, Andrei D. .

PHYSICAL REVIEW B, 2006, 74 (24)

[10] Electron transport through interacting quantum dots in the metallic regime [J].

Golubev, DS ;

Zaikin, AD .

PHYSICAL REVIEW B, 2004, 69 (07)

← 1 2 3 4 →