Berkeley Lab researchers demonstrate a programmable approach to fabricating optical qubits in silicon for large-scale manufacturing.

Diamonds with certain optically active defects can be used as highly sensitive sensors or qubits for quantum computers, where the quantum information is stored in the electron spin state of these colour centres. However, the spin states have to be read out optically, which is often experimentally complex. Now, a team at HZB has developed an elegant method using a photo voltage to detect the individual and local spin states of these defects. This could lead to a much more compact design of quantum sensors.

Nuclear spins in a crystal can be detected and manipulated through their interactions with the more accessible electron spin of a neighboring crystal defect. This strategy has enabled nanoscale magnetic resonance imaging and other quantum applications. But a long-standing challenge has been to target a specific nuclear spin, while protecting the delicate quantum nature of the electron spin. Important progress on this challenge has now been achieved by two teams at the Delft University of Technology in the Netherlands.

A new study published in Nature Communications April 7 could reshape the future of magnetic and electronic technology. Scientists at Rice University have discovered how a disappearing electronic pattern in a quantum material can be revived under specific thermal conditions. The finding opens new doors for customizable quantum materials and in-situ engineering, where devices are manufactured or manipulated directly at their point of use.

ICFO researchers unveil a new strategy that significantly enhances the performance of silver telluride colloidal quantum dots for shortwave infrared (SWIR) photodetection, paving the way for the widespread adoption of SWIR detectors in consumer electronics and automotive applications.

The University of Basel and the University of Bern are setting up a new research center to enable the construction of superconducting quantum units. The Werner Siemens Foundation is supporting the project with a total of CHF 15 million over the next eleven years.

University of Texas at Dallas scientists are investigating how structures made from several layers of graphene stack up in terms of their fundamental physics and their potential as reconfigurable semiconductors for advanced electronics.

In the coming months, the Defense Innovation Unit’s (DIU’s) Transition of Quantum Sensing (TQS) program will demonstrate the military utility of quantum sensors to address strategic Joint Force competencies like positioning, navigation, and timing (PNT), as well as anomaly detection. Significant progress on the scientific understanding and product development of quantum sensors, offering the promise of significant improvements in precision, accuracy, and sensitivity compared to classical sensors, is being made, and these solutions, as well as the supporting companies advancing these technologies, are ready to proceed forward.

Researchers at ETH Zurich have developed a method that makes it easier to study interactions between electrons in a material. Using a moiré material consisting of twisted atomic layers they created an artificial crystal lattice in a neighbouring material.

New research by Curtin University has achieved a breakthrough in eco-friendly display technology, creating highly efficient and stable blue quantum dot LEDs (QLEDs) that could power the next generation of televisions, smartphones, VR headsets and energy-efficient lighting – without using toxic heavy metals.