118 citations · 500 across the 59 of their papers we have counts for
64 papers
Fragmented and symmetry-restored condensates in a three-site Bose ring: exchange versus umklapp
A. Siddiki
We study bosons on a three-site ring with nearest-neighbour hopping, density-assisted hopping of the opposite sign, and an on-site interaction, written equivalently as three mo…
From Quantized Hall Plateaus to Topological Surfaces: Quantum Capacitance as a Unifying Probe
A. Siddiki
The quantum Hall effect, topological insulators and quantum capacitance are usually treated as distinct topics, yet they share a common thread. Bulk topology determines a protected…
Interior contacts in a narrow quantum Hall bar: a two-dimensional self-consistent screening calculation of the current distribution
A. Siddiki
We present fully two-dimensional self-consistent calculations of the electron density, local filling factor and current distribution in a six-terminal GaAs/AlGaAs Hall bar of width…
Rotational symmetry and common-mode phase drift in a counter-wound S-shaped Aharonov--Bohm interferometer
Halil Serdar Solak, Afif Siddiki
We study common flux offsets in a three-dimensional InAs Aharonov-Bohm waveguide formed by two quarter-circle bends of opposite curvature. Each bend contains a through-opening that…
Quasilocal transport in the integer quantised Hall effect: adiabatic separation, local Ohm's law, and Joule heating of the incompressible strips
A. Siddiki
We reassess the semiclassical route to integer quantum Hall transport around one idea: the separation of fast, quantised cyclotron motion from a slow, self-consistently screened gu…
Transition from edge- to bulk-currents in the quantum Hall regime
Serkan Sirt, Vladimir Y. Umansky, Afif Siddiki +1
The integer quantum Hall effect can be observed in a two-dimensional conductor penetrated by a perpendicular magnetic field and with edges connecting the current carrying contacts.…