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Bias dependent subband edges and the 0.7 conductance anomaly
Anders Kristensen, Henrik Bruus
The 0.7 2e^2/h conductance anomaly is studied in strongly confined, etched GaAs/GaAlAs quantum point contacts by measuring the differential conductance G as a function of source-dr…
The anomalous 0.5 and 0.7 conductance plateaus in quantum point contacts
Henrik Bruus, Vadim V. Cheianov, Karsten Flensberg
The anomalous 0.5 and 0.7 conductance plateaus in quantum point contacts in zero magnetic field are analyzed within a phenomenological model. The model utilizes the Landauer-Buttik…
A single-particle path integral for composite fermions and the renormalization of the effective mass
Kasper Astrup Eriksen, Per Hedegaard, Henrik Bruus
To study composite fermions around an even denominator fraction, we adapt the phase space single-particle path integral technique for interacting electrons in zero magnetic field d…