Related Experiment Video
Updated: May 14, 2026

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
Published on: August 2, 2019
Tailoring population inversion in Landau-Zener-Stückelberg interferometry of flux qubits
Alejandro Ferrón1, Daniel Domínguez, María José Sánchez
1Instituto de Modelado e Innovación Tecnológica (CONICET-UNNE), 3400 Corrientes and Centro Atómico Bariloche and Instituto Balseiro, 8400 San Carlos de Bariloche, Río Negro, Argentina.
Abstract:
We distinguish different mechanisms for population inversion in flux qubits driven by dc+ac magnetic fields. We show that for driving amplitudes such that there are Landau-Zener-Stückelberg interferences, it is possible to have population inversion solely mediated by the environmental bath. Furthermore, we find that the degree of population inversion can be controlled by tailoring a resonant frequency Ω(p) in the environmental bath. To observe these effects experiments should be performed for long driving times after full relaxation.
Related Concept Videos
Fermi Level Dynamics
Electron affinity in semiconductors refers to the energy gap between the minimum of its conduction band and the vacuum level and it is a critical parameter in determining how easily a semiconductor can accept additional electrons.
The work...
Hybridization of Atomic Orbitals II
Biasing of Metal-Semiconductor Junctions
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...
Atomic Nuclei: Nuclear Spin State Population Distribution
Hybridization of Atomic Orbitals I
Atomic Nuclei: Nuclear Relaxation Processes
