The authors of this article have created structured electron vortices with non-homogeneous intensity distributions based on the relationship between the local divergence angle and azimuthal phase gradient of electron beams. This breakthrough means that the intensity patterns of electron vortices can be customized according to specific needs, opening new dimensions for the manipulation and application of electron beams.

Quantum Machines, the leading provider of breakthrough quantum control solutions, today announced the release of an advanced digital direct-synthesis (DDS) microwave front-end module (MW-FEM) for OPX1000, its high-density, processor-based quantum control platform. As an industry-first combination of a processor-based controller with all-digital signal generation, the new module represents a groundbreaking leap in quantum control, empowering researchers and full-stack quantum computer builders to push the boundaries of quantum computing.

Scientists at Paderborn University have used a new method to determine the characteristics of optical, i.e. light-based, quantum states. For the first time, they are using certain photon detectors — devices that can detect individual light particles — for so-called homodyne detection. The ability to characterize optical quantum states makes the method an essential tool for quantum information processing. Precise knowledge of the characteristics is important for use in quantum computers, for example. The results have now been published in the specialist journal Optica Quantum.

The team from the University of Birmingham tested the laser cooling method developed by Aquark Technologies which does not require an applied magnetic field and so could make quantum sensing systems more portable and robust and therefore easier to use commercially.