Eryk Halubek | Searcharxiv

arXiv2025

Methodology of signal spectral analysis in various Kron model geometries

This work presents experimental and theoretical comparison in the modelling of the quantum wave function of single-electron in semiconductor nanowire via classical analog electronics based hardware emulator with the use of Kron concept. Thus we are able to express the semiconductor single-electron devices of linear or closed circle topology as present in position-based qubits that can be mapped essentially to one dimensional Kron model implemented experimentally. We have also represented a two dimensional single-electron wave function in Krons model and point out future experiments to be conducted.

cond-mat.mes-hall↗

arXiv2023

CMOS-Compatible Electrostatic SWAP Gate in Silicon Quantum Dots: Justification of Tight-Binding Model and Going Beyond

We present a generalized electrostatic SWAP gate realized in a chain of two double quantum dots operated in the single-electron regime. Using a minimalist tight-binding model, we derive analytical results and corroborate them with numerical simulations. We exploit the charge anticorrelation arising from Coulomb repulsion and quantify the resulting entanglement generation. We contrast classical and quantum descriptions and show how device geometry and coupling strengths govern entanglement dynamics and gate performance. The results are relevant to cryogenic, CMOS-compatible quantum technologies and suggest a route toward large-scale semiconductor implementations of quantum logic. Finally, we outline a systematic procedure for translating classical electrostatic logic gates into single-electron quantum gates.

cond-mat.mes-hall↗