Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Videos

Photon-assisted tunneling in electron pumps

Covington¹, Keller, Kautz

¹National Institute of Standards and Technology, Boulder, Colorado 80303, USA.

Physical Review Letters

|September 16, 2000

Summary

We measured photon-assisted tunneling in electron pumps up to 60 GHz. This phenomenon, driven by 1/f noise, is a key error source in electron pumps without external microwaves.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Shedding of zoonotic pathogens and analysis of stomach contents in great cormorants (Phalacrocorax carbo sinensis) from Switzerland between 2007 and 2012.

Schweizer Archiv fur Tierheilkunde·2014

Same author

Crossed dystopia left kidney with large tumor formation and calcification.

Zeitschrift fur Urologie·2010

Same author

Further experience on the therapy of venereal diseases with sulfonamides.

Deutsche medizinische Wochenschrift (1946)·2010

Same author

New High-Resolution Analysis of the 3nu(3) and 2nu(1) + nu(3) Bands of Nitrogen Dioxide (NO(2)) by Fourier Transform Spectroscopy.

Journal of molecular spectroscopy·2001

Same author

Vogel-fulcher dependence of relaxation rates in a nematic monomer and elastomer

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics·2001

Same author

A cyanide-bridged bimetallic complex,

Acta crystallographica. Section C, Crystal structure communications·2000

Area of Science:

Quantum electronics
Mesoscopic physics

Background:

Electron pumps are crucial for precise charge transfer.
Understanding error mechanisms is vital for quantum device accuracy.
Photon-assisted tunneling can influence charge transport.

Purpose of the Study:

To experimentally investigate photon-assisted tunneling in multi-junction electron pumps.
To quantify the impact of microwave frequencies on tunneling.
To validate theoretical models of electron pump leakage.

Main Methods:

Utilizing 4- and 6-junction electron pumps.
Employing noise thermometry to determine microwave voltage.
Conducting experiments at photon frequencies up to 60 GHz.

Main Results:

Photon-assisted tunneling was successfully measured in electron pumps.
A modified leakage theory accurately described experimental data.
The microwave voltage at the pumps was precisely determined.

Conclusions:

Photon-assisted tunneling is well-described by modified leakage theory.
1/f noise-driven photon-assisted tunneling is a significant error source in electron pumps.
This finding is particularly relevant in the absence of external microwaves.

Related Experiment Videos