Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT

Freigegeben

Zeitschriftenartikel

Dephasing by electron-electron interactions in a ballistic Mach-Zehnder interferometer

MPG-Autoren
Es sind keine MPG-Autoren in der Publikation vorhanden
Externe Ressourcen
Es sind keine externen Ressourcen hinterlegt
Volltexte (beschränkter Zugriff)
Für Ihren IP-Bereich sind aktuell keine Volltexte freigegeben.
Volltexte (frei zugänglich)

NewJPhys.10.115018.pdf
(beliebiger Volltext), 2MB

Ergänzendes Material (frei zugänglich)

2008_Dephasing_by.png
(Ergänzendes Material), 73KB

Zitation

Neuenhahn, C., & Marquardt, F. (2008). Dephasing by electron-electron interactions in a ballistic Mach-Zehnder interferometer. New Journal of Physics, 10: 115018. doi:10.1088/1367-2630/10/11/115018.


Zitierlink: https://hdl.handle.net/21.11116/0000-0001-D8AC-A
Zusammenfassung
We consider a ballistic Mach-Zehnder interferometer for electrons propagating chirally in one dimension (such as in an integer quantum Hall effect edge channel). In such a system, dephasing occurs when the finite range of the interaction potential is taken into account. Using the tools of bosonization, we discuss the decay of coherence as a function of propagation distance and energy. We supplement the exact solution by a semiclassical approach that is physically transparent and is exact at high energies. In particular, we study in more detail the recently predicted universal power-law decay of the coherence at high energies, where the exponent does not depend on the interaction strength. In addition, we compare against Keldysh perturbation theory, which works well for small interaction strength at short propagation distances.