Double Point Contact in Quantum Hall Line Junctions
نویسندگان
چکیده
منابع مشابه
Double point contact in quantum Hall line junctions.
We show that multiple point contacts on a barrier separating two laterally coupled quantum Hall fluids induce Aharonov-Bohm (AB) oscillations in the tunneling conductance. These quantum coherence effects provide new evidence for the Luttinger liquid behavior of the edge states of quantum Hall fluids. For a two point contact, we identify coherent and incoherent regimes determined by the relative...
متن کاملLine junctions in the quantum Hall effect
A long narrow gate across a fractional quantum Hall fluid at filling n51/m with odd integer m , creates a one-dimensional ~1D! system that is isomorphic to a disordered 1D electron gas with attractive interactions. By varying the gate potential along such a line junction, it should be possible to tune through the 1D localization transition, predicted for an attractively interacting electron gas...
متن کاملQuantum point contact in a compressible Quantum Hall liquid
We consider electron transport through a quantum point contact between compressible Quantum Hall liquids and derive the contact’s impedance function for both diffusive and ballistic regimes of the bulk electron motion. In either regime, the tunneling current deviates from a power-law behavior I ∼ V 1/ν expected on the basis of the single-mode chiral Luttinger liquid phenomenology.
متن کاملQuantum point contact between compressible Quantum Hall liquids
We elaborate on a theory of electronic transport through a quantum point contact (QPC) in the Quantum Hall (QH) regime, which does not discriminate between compressible and incompressible QH liquids, and accounts for both diffusive and ballistic regimes of the bulk electron motion. In either regime we find departures from the accustomed chiral Luttinger liquid behavior. The results suggest that...
متن کاملFractional quantum Hall effect in a quantum point contact at filling fraction 5/2
Division of Engineering and Applied Science, Harvard University, Cambridge, Massachusetts 02138, USA Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA Department of Physics and Astronomy, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA Bell Labs, ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2003
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.91.156801