News : Theoretical Physics

January 01 2023

Modeling silicon and germanium spin qubits

Silicon/Germanium spin qubits have attracted increasing attention and have made outstanding progress in the past two years. In these devices, the elementary information is stored as a coherent superposition of the spin states of an electron in a Si/SiGe heterostructure, or of a hole in a Ge/SiGe heterostructure. These spins can be manipulated electrically owing […] >>

January 01 2023

Modelling silicon/germanium spin qubits

Silicon/Germanium spin qubits have made outstanding progress in the past two years [Nature 591, 580 (2021); arXiv:2202.09252]. In these devices, the elementary information is stored as a coherent superposition of the spin states of an electron in a Si/SiGe heterostructure, or of a hole in a Ge/SiGe heterostructure. These spins can be manipulated electrically owing […] >>

December 15 2020

Development of Atomic Force Microscopy techniques for the characterization of piezoelectric semiconductor materials – Applications in energy conversion

Description of the project: Semiconductor piezoelectric nanowires (NWs) (GaN and ZnO among others) have improved piezoelectric properties compared to thin films and bulk materials, due to their greater flexibility and sensitivity to lower forces. An intrinsic improvement in piezoelectric coefficients has also been identified by recent theoretical and experimental studies [1, 2]. These NWs can […] >>

October 22 2019

Theoretical studies of spin-orbit phenomena at interfaces comprising magnetic and nonmagnetic materials in a view of memory devices

This internship project aims on unveiling microscopic mechanisms of spin-orbit phenomena including perpendicular magnetic anisotropy in order to help optimizing spin-based memory applications and provide the scientific underpinnings of next generation energy efficient, ultrafast and ultrasmall spintronic devices. >>

October 11 2019

Quantum computing and the orthogonality catastrophe

Quantum physics is evolving from a purely academic field towards building actual technologies with potential applications. Among those, the quantum computer is one of the most fascinating possibilities. Operating a quantum computer is however a race against time, as one needs to build up entanglement before decoherence sets in. In this project, we will be […] >>
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