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

Coulomb drag in coherent mesoscopic systems.

N A Mortensen1, K Flensberg, A P Jauho

  • 1Mikroelectrnik Centret, Technical University of Denmark, Kgs. Lyngby.

Physical Review Letters
|April 6, 2001
PubMed
Summary

We developed a theory for Coulomb drag in mesoscopic systems, applicable to both ballistic and disordered conditions. This approach reveals Coulomb drag

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

Stimulated plasmon polariton scattering.

Nature communications·2020
Same author

Role of diffusive surface scattering in nonlocal plasmonics.

Journal of physics. Condensed matter : an Institute of Physics journal·2020
Same author

Flux-induced topological superconductivity in full-shell nanowires.

Science (New York, N.Y.)·2020
Same author

Weak Measurement Protocols for Majorana Bound State Identification.

Physical review letters·2020
Same author

Conductance-Matrix Symmetries of a Three-Terminal Hybrid Device.

Physical review letters·2020
Same author

Hybridization of Subgap States in One-Dimensional Superconductor-Semiconductor Coulomb Islands.

Physical review letters·2019

Area of Science:

  • Condensed matter physics
  • Mesoscopic physics
  • Quantum transport

Background:

  • Coulomb drag measures interactions between nearby electronic systems.
  • Understanding drag in mesoscopic systems is crucial for quantum electronics.
  • Existing theories often limited to specific regimes (e.g., purely ballistic or disordered).

Purpose of the Study:

  • To present a unified theory for Coulomb drag in mesoscopic systems.
  • To extend the understanding of Coulomb drag to include localized states.
  • To investigate the behavior of Coulomb drag in both 2D chaotic and 1D disordered systems.

Main Methods:

  • Developed a theoretical formalism based on scattering matrices and wave functions.
  • Applicable to both ballistic and disordered mesoscopic systems.
  • Utilized analytic methods (e.g., random matrix theory) and numerical simulations.

Main Results:

  • Coulomb drag is sensitive to localized electronic states, unobservable by standard transport measurements.
  • In chaotic 2D systems, the average Coulomb drag is zero, but its variance is non-zero.
  • Disordered 1D wires exhibit a finite Coulomb drag with significant variance, potentially leading to induced current sign changes.

Conclusions:

  • The presented theory provides a comprehensive framework for Coulomb drag in mesoscopic systems.
  • Coulomb drag can serve as a sensitive probe for localized states.
  • The distinct behaviors in 2D and 1D systems highlight the importance of dimensionality and disorder in Coulomb drag phenomena.

Related Experiment Videos