People

Niels Focke

PhD Candidate

Spin qubits with SiGe/Ge/SiGe quantum wells

Working on spin qubits confined in a Ge/SiGe heterostructure with an initial focus on fabrication of nanoscale devices. In a second step we will study these spin qubits to gain insights on the novel properties of Germanium and evaluate their suitability for large scale qubit devices.

Spandan Anupam

PhD Candidate

Superconducting Josephson junctions with SiGe/Ge/SiGe quantum wells

Working on making high transparency Josephson junctions with Ge QW 2DHG as the weak-link to study essential quantum phenomena in the system. We plan to use these junctions to study the Andreev bound states and Josephson effect using GHz two tone spectroscopy.

Lino Visser

PhD Candidate

Spin qubits with SiGe/Ge/SiGe quantum wells

Working on spin qubits in Ge/SiGe heterostructures, concentrating on the electrical and cryogenic setups and device measurements. With these qubits we want to understand the interplay of material parameters and qubit metrics to deliberately engineer devices with increased performance.

Katarina Stanojević

PhD Candidate

Superconducting Josephson junctions with SiGe/Ge/SiGe quantum wells

Working on making high transparency Josephson junctions with Ge QW 2DHG as the weak-link to study essential quantum phenomena in the system. We plan to use these junctions to study the Andreev bound states and Josephson effect using GHz two tone spectroscopy.

Zoë Siebers

PhD Candidate

Spin qubits with SiGe/Ge/SiGe quantum wells

Working on spin qubits confined in a Ge/SiGe heterostructure. After initially focusing on further advancing our qubit design and fabrication techniques, we are aiming to further study Germanium and move to the few qubit level of device complexity.

Simon Schreibing

Masters Student

Radio Frequency Readout of Spin Qubits

Tom Arnold

Masters Student

Optimization of Ge/SiGe Spin Qubit Device Architectures

Til Wimmer

Masters Student

Cryogenic measurement setup improvements

Developing solutions for cryogenic setups to enable efficient and fast characterization of spin qubit devices and achieve radiation shielding of superconducting qubit devices.

Lotta Ehlert

Masters Student

Optimization of Experimental Filtering and Measurement Sensitivity for the Investigation of Josephson Junctions

Optimizing the measurement setup of a dilution refrigerator to improve DC signal detection and suppress RF noise. The objective is to enhance measurement sensitivity and establish a reliable experimental platform for detailed investigation of planar Josephson junctions.

Laura Gundermann

Masters Student

Optimization of NbTiN superconducting films for the fabrication of Josephson junctions and microwave resonators.

Jyotirmaya Shivottam

Research Assistant

Working on Measurement Data Visualization Software, Qimchi

Developing Qimchi, a free and open-source application for interactive visualization and analysis of scientific measurement data. The goal is to simplify data exploration, streamline measurement workflows, and make scientific analysis more accessible and reproducible.

Natalie Liuklian

Intern

Characterisation of a cryogenic impedance bridge for mesoscopic measurements

Working with a HEMT-based cryogenic impedance bridges to measure different samples. Currently characterising aluminium and silicon oxides to test their quality as insulators, from room temperature down to cryogenic temperatures in an ADR.