Quantum ratchets

被引：265

作者：

Reimann, P

Grifoni, M

Hanggi, P

机构：

[1] Universität Augsburg, Augsburg, D-86135

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.79.10

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate quantum Brownian motion in adiabatically rocked ratchet systems. Above a crossover temperature T-c tunnelling events are rare, yet they already substantially enhance the classical particle current. Below T-c, quantum tunnelling prevails and the classical predictions grossly underestimate the transport. Upon approaching T=0 the quantum current exhibits a tunnelling induced reversal, and tends to a finite limit.

引用

页码：10 / 13

页数：4

共 26 条

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