5 papers
Quantum Hall Effect: Current Distribution and Existence of Extended States
K. Tsemekhman, V. Tsemekhman, C. Wexler
We present a consistent description of the current distribution in the quantum Hall effect, based on two main ingredients: the location of the extended states and the distribution…
Density of states, screening and the width of the quantum Hall plateaus
K. Tsemekhman, V. Tsemekhman, C. Wexler
We present a consistent treatment of the quantum Hall effect within the electrostatic approximation. We derive the form of the density of states (DOS) which differs from the usual…
Quantized Vortices in Superfluids and Superconductors
D. J. Thouless, Ping Ao, Qian Niu +2
We give a general review of recent developments in the theory of vortices in superfluids and superconductors, discussing why the dynamics of vortices is important, and why some key…
Effective Vortex Dynamics in Superfluid Systems
C. Wexler, D. J. Thouless
An alternative approach to the derivation of the force on a vortex based in an adiabatic approximation in the action of the superfluid system is developed. Assuming that the vortex…
Quantum Hall Effect: Current Distribution and the Role of Measurement
K. Tsemekhman, V. Tsemekhman, C. Wexler +1
Based on very general arguments we show that for any geometry of the experiment, in the regime when the measurement leads to a quantized Hall conductivity, almost the entire curren…