Quantum Limit of Heat Flow Across a Single Electronic Channel

被引：236

作者：

Jezouin, S. ^{[1
]}

Parmentier, F. D. ^{[1
]}

Anthore, A. ^{[1
,2
]}

Gennser, U. ^{[1
]}

Cavanna, A. ^{[1
]}

Jin, Y. ^{[1
]}

Pierre, F. ^{[1
]}

机构：

[1] CNRS, Lab Photon & Nanostruct, UPR20, F-91460 Marcoussis, France

[2] Univ Paris Diderot, Sorbonne Paris Cite, Dept Phys, F-75013 Paris, France

来源：

SCIENCE | 2013年 / 342卷 / 6158期

基金：

欧洲研究理事会;

关键词：

THERMAL CONDUCTANCE; TRANSPORT; NOISE; PHYSICS;

D O I：

10.1126/science.1241912

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Quantum physics predicts that there is a fundamental maximum heat conductance across a single transport channel and that this thermal conductance quantum, G(Q), is universal, independent of the type of particles carrying the heat. Such universality, combined with the relationship between heat and information, signals a general limit on information transfer. We report on the quantitative measurement of the quantum-limited heat flow for Fermi particles across a single electronic channel, using noise thermometry. The demonstrated agreement with the predicted GQ establishes experimentally this basic building block of quantum thermal transport. The achieved accuracy of below 10% opens access to many experiments involving the quantum manipulation of heat.

引用

页码：601 / 604

页数：4

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