MESOSCOPIC TRANSPORT THROUGH CHAOTIC CAVITIES - A RANDOM S-MATRIX THEORY APPROACH

被引：332

作者：

BARANGER, HU ^{[1
]}

MELLO, PA ^{[1
]}

机构：

[1] UNIV NACL AUTONOMA MEXICO, INST FIS, MEXICO CITY 01000, DF, MEXICO

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 73卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.73.142

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We deduce the effects of quantum interference on the conductance of chaotic cavities by using a statistical ansatz for the S matrix. Assuming that the circular ensembles describe the S matrix, we find that the conductance fluctuation and weak-localization magnitudes are universal: they are independent of the size and shape of the cavity if the number of incoming modes, N, is large. The limit of small N is more relevant experimentally; here we calculate the full distribution of the conductance and find striking differences as N changes or a magnetic field is applied.

引用

页码：142 / 145

页数：4

共 41 条

[1]

Altshuler B. L, 1991, MESOSCOPIC PHENOMENA

[2] Quantum-chaotic scattering effects in semiconductor microstructures [J].

Baranger, Harold U. ;

Jalabert, Rodolfo A. ;

Stone, A. Douglas .

CHAOS, 1993, 3 (04) :665-682

[3] WEAK-LOCALIZATION AND INTEGRABILITY IN BALLISTIC CAVITIES [J].

BARANGER, HU ;

JALABERT, RA ;

STONE, AD .

PHYSICAL REVIEW LETTERS, 1993, 70 (25) :3876-3879

[4] CLASSICAL AND QUANTUM BALLISTIC-TRANSPORT ANOMALIES IN MICROJUNCTIONS [J].

BARANGER, HU ;

DIVINCENZO, DP ;

JALABERT, RA ;

STONE, AD .

PHYSICAL REVIEW B, 1991, 44 (19) :10637-10675

[5] UNIVERSALITY IN THE RANDOM-MATRIX THEORY OF QUANTUM TRANSPORT [J].

BEENAKKER, CWJ .

PHYSICAL REVIEW LETTERS, 1993, 70 (08) :1155-1158

[6]

BEENAKKER CWJ, 1991, SOLID STATE PHYS, V44, P1

[7] RANDOM-MATRIX THEORY OF MESOSCOPIC FLUCTUATIONS IN CONDUCTORS AND SUPERCONDUCTORS [J].

BEENAKKER, CWJ .

PHYSICAL REVIEW B, 1993, 47 (23) :15763-15775

[8] WEAK-LOCALIZATION AND CONDUCTANCE FLUCTUATIONS IN A CHAOTIC QUANTUM-DOT [J].

BERRY, MJ ;

KATINE, JA ;

MARCUS, CM ;

WESTERVELT, RM ;

GOSSARD, AC .

SURFACE SCIENCE, 1994, 305 (1-3) :495-500

[9] RANDOM-MATRIX DESCRIPTION OF CHAOTIC SCATTERING - SEMICLASSICAL APPROACH [J].

BLUMEL, R ;

SMILANSKY, U .

PHYSICAL REVIEW LETTERS, 1990, 64 (03) :241-244

[10] A SIMPLE-MODEL FOR CHAOTIC SCATTERING .2. QUANTUM-MECHANICAL THEORY [J].

BLUMEL, R ;

SMILANSKY, U .

PHYSICA D, 1989, 36 (1-2) :111-136

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