Quantum pumping : coherent rings versus open conductors

Moskalets, Mykhaylo; Buttiker, Markus

doi:10.1103/PhysRevB.68.161311

Scientific article

English

Quantum pumping : coherent rings versus open conductors

Contributors

Moskalets, Mykhaylo; Buttiker, Markus

Published in

Physical review. B, Condensed matter and materials physics, vol. 68, no. 161311, 4

Publication date

2003

Abstract

We examine adiabatic quantum pumping generated by an oscillating scatterer embedded in a one-dimensional ballistic ring and compare it with pumping caused by the same scatterer connected to external reservoirs. The pumped current for an open conductor, paradoxically, is non-zero even in the limit of vanishing transmission. In contrast, for the ring geometry the pumped current vanishes in the limit of vanishing transmission. We explain this paradoxical result and demonstrate that the physics underlying adiabatic pumping is the same in open and in closed systems.

UNIGE affiliation entities

Faculté des sciences / Section de physique / Département de physique théorique

Citation (ISO format)

MOSKALETS, Mykhaylo, BUTTIKER, Markus. Quantum pumping : coherent rings versus open conductors. In: Physical review. B, Condensed matter and materials physics, 2003, vol. 68, n° 161311, p. 4. doi: 10.1103/PhysRevB.68.161311

Article (Published version)

Identifiers

PID : unige:4158
DOI : 10.1103/PhysRevB.68.161311
arXiv : cond-mat/0307675

Journal ISSN

1098-0121

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319downloads

Creation

30/11/2009 15:06:03

First validation

30/11/2009 15:06:03

Update

04/04/2025 13:02:31

Status update

06/11/2023 13:39:17

Last indexation

04/04/2025 13:04:27

Quantum pumping : coherent rings versus open conductors

Contributors

Published in

Publication date

Abstract

UNIGE affiliation entities

Citation (ISO format)

Main files (1)

Identifiers

Journal ISSN

Technical informations

Creation

First validation

Update

Status update

Last indexation