Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Using a quantum dot as a high-frequency shot noise detector.

E Onac1, F Balestro, L H Willems van Beveren

  • 1Kavli Institute of Nanoscience Delft, Delft University of Technology, The Netherlands. eugen.onac@philips.com

Physical Review Letters
|May 23, 2006
PubMed
Summary
This summary is machine-generated.

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

Stress response of 18-, 24- and 30-month-old sport horse stallions to a pretraining programme.

Animal : an international journal of animal bioscience·2024
Same author

Enhancement of awareness through feedback does not lead to interlimb transfer of obstacle crossing in virtual reality.

Journal of biomechanics·2023
Same author

Obstacle avoidance training in virtual environments leads to limb-specific locomotor adaptations but not to interlimb transfer in healthy young adults.

Journal of biomechanics·2021
Same author

Sexual cues alter working memory performance and brain processing in men with compulsive sexual behavior.

NeuroImage. Clinical·2020
Same author

Magnetic field compatible circuit quantum electrodynamics with graphene Josephson junctions.

Nature communications·2018
Same author

Operating Quantum States in Single Magnetic Molecules: Implementation of Grover's Quantum Algorithm.

Physical review letters·2017

We demonstrate a quantum dot (QD) as a high-frequency noise detector. Nearby quantum point contact (QPC) noise ionizes the QD, generating a detectable signal, crucial for understanding QPC backaction.

Area of Science:

  • Quantum electronics
  • Mesoscopic physics
  • Solid-state physics

Background:

  • Quantum dots (QDs) are crucial in quantum information processing.
  • Quantum point contacts (QPCs) are sensitive charge detectors.
  • Understanding the interplay between QPCs and QDs is vital for advanced quantum devices.

Purpose of the Study:

  • To experimentally realize and characterize a quantum dot (QD) as a high-frequency noise detector.
  • To investigate the mechanism of QD ionization by current fluctuations from a quantum point contact (QPC).
  • To analyze the dependence of the QD detector signal on QPC transmission and voltage bias.

Main Methods:

  • Experimental setup involving a QD coupled to a QPC.
  • Measurement of transient current through the QD as a detector signal.

Related Experiment Videos

  • Theoretical analysis of QD ionization and transport through excited states.

    • Main Results:

    • Successful operation of a QD as a high-frequency noise detector.
    • Observation of QD signal dependence on QPC transmission and voltage bias.
    • Explanation of a quantum threshold feature and signal saturation in the QD detector.

    Conclusions:

    • The QD functions effectively as a sensitive high-frequency noise detector.
    • The study provides insights into the backaction of QPCs when used as charge detectors.
    • This work is relevant for developing advanced quantum measurement techniques.