Publication highlights
Quantum one-way street in topological insulator nanowires
Quantum one-way street in topological insulator nanowires Very thin wires made of a topological insulator could enable highly stable qubits, the building blocks of future quantum computers. Scientists see a new result in topological insulator devices as an important...
Quantum Computing challenged by disorder – study published in Nature Communications
Research conducted in the ML4Q groups of Simon Trebst, Alex Altland and David DiVincenzo analyzed cutting edge device structures to demonstrate that some of them are indeed operating dangerously close to a threshold of chaotic meltdown. The challenge is to walk a thin...
First Hybrid Quantum Bit Based on Topological Insulators
First Hybrid Quantum Bit Based on Topological Insulators Scientists at Forschungszentrum Jülich take an important step on the path towards topological quantum computers With their superior properties, topological qubits could help achieve a...
Realization of proximity-induced superconductivity in a topological-insulator nanowire
The Ando group has developed a new methodology to realize proximity-induced superconductivity in a topological-insulator nanowire. The work was conducted in cooperation with the Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons at Forschungszentrum...
2D materials for next generation computing
In a compact comment published in Nature Communications, Max Lemme, Christoph Stampfer and colleagues outline the most promising fields of applications of two-dimensional (2D) materials, as well as the challenges that still need to be solved to see the appearance of...
Inter-site collaboration demonstrates wavelength conversion of single photons emitted by semiconductor quantum dots
Inter-site collaboration demonstrates wavelength conversion of single photons emitted by semiconductor quantum dots ML4Q researchers from Bonn and Jülich have published recent results in Optics Letters on wavelength conversion at the single-photon level - a...
Extremely compressible “gas of light”
Busley et al. bring these advantages to quantum gases of light and explore a textbook scenario: a two-dimensional, spatially uniform gas of bosons.[from Photons think inside the box, Perspective, Science 375 (6586), pp. 1355-1356, 2022]The group of Martin Weitz...
Observing the difference between quantum and classical causality
In an international multi-site cooperation, scientists from the ML4Q Cluster of Excellence are able to observe quantum effects in cause and effect relationship in a photonic experiment. Understanding causal relationships in the observed data is a deeply rooted concept...
Nature Reviews Physics: Oliver Breunig and Yoichi Ando review opportunities of topological insulator devices
Topological insulators hold promise as a platform for unique quantum phenomena. However, realizing these phenomena experimentally requires sophisticated devices. In a Technical Review in Nature Reviews Physics, ML4Q spokesperson Yoichi Ando and ML4Q associated member...