38 citations · 113 across the 14 of their papers we have counts for
14 papers
Fast evaluation of interaction integrals for confined systems with machine learning
Alina Mreńca-Kolasińska, Krzysztof Kolasiński, Bartłomiej Szafran
The calculation of interaction integrals is a bottleneck for the treatment of many-body quantum systems due to its high numerical cost. We conduct configuration interaction calcula…
Imaging snake orbits at graphene n-p junctions
K. Kolasiński, A. Mreńca-Kolasińska, B. Szafran
We consider conductance mapping of the snake-orbits confined along the n-p junction defined in graphene by the electrostatic doping in the quantum Hall regime. We explain the perio…
Theory of ballistic quantum transport in presence of localized defects
K. Kolasiński, A. Mreńca-Kolasińska, B. Szafran
We present an efficient numerical approach for treating ballistic quantum transport across devices described by tight binding (TB) Hamiltonians designated to systems with localized…
Conductance measurement of spin-orbit coupling in the two-dimensional electron systems with in-plane magnetic field
K. Kolasiński, H. Sellier, B. Szafran
We consider determination of spin-orbit (SO) coupling constants for the two-dimensional electron gas from measurements of electric properties in rotated in-plane magnetic field. %D…
Interference features in scanning gate conductance maps of quantum point contacts with disorder
K. Kolasiński, B. Szafran, B. Brun +1
We consider quantum point contacts (QPCs) defined within disordered two-dimensional electron gases as studied by scanning gate microscopy. We evaluate the conductance maps in the L…
Spin-orbit coupling measurement by the scanning gate microscopy
K. Kolasiński, H. Sellier, B. Szafran
We propose a procedure for extraction of the Fermi surface for a two-dimensional electron gas with a strong Rashba spin-orbit coupling from conductance microscopy. Due to the inter…
Transconductance and effective Landé factors for quantum point contacts: spin-orbit coupling and interaction effects
K. Kolasiński, A. Mreńca-Kolasińska, B. Szafran
We analyze the effective factors and their dependence on the orientation of the external magnetic field for a quantum point contact defined in the two-dimensional electron ga…
Electron paths and double-slit interference in the scanning gate microscopy
K. Kolasiński, B. Szafran
We analyze electron paths in a solid-state double-slit interferometer based on the two-dimensional electron gas and their mapping by the scanning gate microscopy (SGM). A device wi…
Multitip scanning gate microscopy for ballistic transport studies in systems with two-dimensional electron gas
K. Kolasiński, B. Szafran, B. Hackens
We consider conductance mapping of systems based on the two-dimensional electron gas with scanning gate microscopy using two and more tips of the atomic force microscope. The paper…
Imaging the localization of the quasi-bound states in graphene antidots
Alina Mreńca, Krzysztof Kolasiński, Bartłomiej Szafran
We consider charge transport across a finite graphene flake with a circular antidot defined in its center. The flake is connected to thin metallic armchair nanoribbons and the stud…
Conductance microscopy of quantum dots weakly or strongly coupled to the conducting channel
K. Kolasiński, B. Szafran
We consider scanning gate conductance microscopy of an open quantum dot that is connected to the conducting channel using the wave function description of the quantum transport and…
Wave function description of conductance mapping for quantum Hall electron interferometer
K. Kolasiński, B. Szafran
Scanning gate microscopy of quantum point contacts (QPC) in the integer quantum Hall regime is considered in terms of the scattering wave functions with a finite-difference impleme…
Imaging of double slit interference by scanning gate microscopy
K. Kolasiński, B. Szafran, M. P. Nowak
We consider scanning gate microscopy imaging of the double slit interference for a pair of quantum point contacts (QPCs) defined within the two-dimensional electron gas. The interf…
Signatures of spin-orbit coupling in scanning gate conductance images of electron flow from quantum point contacts
M. P. Nowak, K. Kolasiński, B. Szafran
Electron flow through a quantum point contact in presence of spin-orbit coupling is investigated theoretically in the context of the scanning gate microscopy (SGM) conductance mapp…