Projects
Tuning graphene into a spin active material: Exploiting its size-specific interaction with metal clusters KU Leuven
The success of semiconductor industry relies on the continuous improvement of the performances of integrated circuits (IC). So far, this has been achieved by reducing the size of the basic building block of these circuits, the metal-oxide-semiconductor field effect transistor (MOSFET). The downscaling of MOSFET’s has been realized by introducing new materials, like high-k dielectric/metal gate stacks and high-mobility semiconductors (Ge, ...
Spin Driving in Quantum-Coherent Materials Hasselt University
Spin transport in unconventional superconductors KU Leuven
Superconductor/ferromagnet hybrids are a promising platform for various spin-based applications. In the non-dissipative ground state of a superconductor electrons combine in so-called Cooper pairs, i.e. two electrons with opposite spin orientation allowing the maximization of their phonon-mediated attraction. Unfortunately, this compensated spin configuration is not beneficial for spin information propagation in superconductors. However, at ...
Experimental understanding of noise sources in Silicon MOS devices at cryogenic temperatures for spin qubit applications KU Leuven
Quantum computing embodies the promise of the future, and has the potential to revolutionize our world with its significantly accelerated computational capabilities. This nascent technology is not meant to replace today’s computers but rather solve problems intractable by current computation methods. Analogous to the classical computer the quantum computer is built using basic blocks called quantum bits and performs algorithms using quantum ...
Novel magnetic tunnel junction concept for spin logic application KU Leuven
Spin logic devices based on domain-wall (DW) motion offer flexible architectures to store and carry logic information in a circuit. In this device concept, logic information is encoded in the magnetic state of a magnetic track shared by multiple magnetic tunnel junctions (MTJs) and is processed by DW motion. Such devices combine unique properties such as non-volatility, fast operation, and ultra-low energy consumption. At imec, a novel ...
Electron, spin, and atom dynamics in excited transition metal oxide clusters KU Leuven
This research project deals with the study of electron, spin, and atom dynamics of excited transition metal oxide (TMO) clusters. The clusters will be driven out of equilibrium by short laser pulses and the position of the atoms, the electronic and magnetic states, as well as their dynamic interplay will be studied at any point in time thereafter. Hereto, different static and dynamic experimental techniques will be used such as magnetic ...
Quantum Protocol Implementation with Si/SiGe Spin Qubit KU Leuven
Research into upscaling quantum computers based on Si/SiGe Spin Qubits. More specifically, research into coupling and readout of multiple qubits. For this new designs will be needed, and they will be tested both in room temperature and milli-kelvin. The goal is to aid the creation of usable quantum computers, who are able to do computations using large amounts of qubits.
Fast transmon-quantum dot coupling (at imec) KU Leuven
Quantum dot-based spin qubits have typically a qubit energy splitting of the order of 100 MHz and a coherence time that can be up to a few ms. But these numbers alone probably do not tell you much. In a typical spin qubit hosted in quantum dots, single qubit gates can be performed in about 5 ns or less. In principle this allows for around 10^6 coherent operations (number of gates within the coherence time), although in reality only up to 10^3 ...
Spin-Orbit Coupling for Electronic Resonances KU Leuven
Electronic resonances are states metastable with respect to electronic detachment. They describe a number of chemical phenomena from temporary anions to auto-detaching electronically excited states to Auger decay of core-vacant states. The interaction of such states with the detachment continuum presents a challenge to study them theoretically; it is for this reason that methods based on non-Hermitian quantum mechanics are necessary to ...