MIT physicists developed a technique to arrange atoms in much closer proximity than previously possible, down to 50 nanometers. The group plans to use the method to manipulate atoms into configurations that could generate the first purely magnetic quantum gate — a key building block for a new type of quantum computer.

Aalto University researchers are the first in the world to measure qubits with ultrasensitive thermal detectors—thus evading the Heisenberg uncertainty principle.

Researchers from Fujitsu and QuTech have developed new and ultra-cold electronic circuits to control diamond-based quantum bits. As a result of their joint research project, it becomes possible to build larger quantum computers, through overcoming the ‘wiring bottleneck’, while maintaining high quality performance. In fact, both the quantum bits and the control electronics can be conveniently operated in a single compact cryogenic refrigerator. The researchers publish their results at IEEE’s ISSCC.

SemiQon, an emerging leader in the field of quantum computing hardware, today announces the launch of the world’s first transistor capable of functioning efficiently in cryogenic conditions. These devices will play a crucial role in addressing the critical challenge of scaling today’s quantum computers to fault-tolerant levels and unlocking the full potential of quantum for corporate users, governments and other key stakeholders. The transistors can also be mass produced using existing CMOS fabs, with no new infrastructure required.

In the QSolid collaborative project, Forschungszentrum Jülich and its partners have started operating the first prototype of a quantum computer with optimised qubit quality. It forms the basis of a future quantum computer being developed in Germany using superconducting qubits, which will be able to perform complex calculations for industry and research.

RRI which developed the technology for precision laser systems required for quantum enabled-technology applications and industrial uses, recently awarded the license to nexAtom Research and Instruments, the first spin-off company from RRI. This spinoff company will soon commence production of the multi-channel, tunable laser system technology platforms. RRI has filed a provisional Indian patent for ‘Standalone laser system with frequency tunability and precision control’.

Peter Fischer, a senior researcher at the Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab), led a project to make 3D X-ray images of skyrmions that can characterize or measure the orientations of spins inside the whole object. “Our results provide a foundation for nanoscale metrology for spintronics devices,” Fischer said. The work was recently published in Science Advances.

A research team led by the Department of Energy’s Oak Ridge National Laboratory has devised a unique method to observe changes in materials at the atomic level. The technique opens new avenues for understanding and developing advanced materials for quantum computing and electronics.

Now, in a recently published Nature paper, JILA and NIST Fellow and University of Colorado Boulder Physics Professor Jun Ye and his team, along with collaborators in Mikhail Lukin’s group at Harvard University, used periodic microwave pulses in a process known as Floquet engineering, to tune interactions between ultracold potassium-rubidium molecules in a system appropriate for studying fundamental magnetic systems. Moreover, the researchers observed two-axis twisting dynamics within their system, which can generate entangled states for enhanced quantum sensing in the future.

Physicists from Würzburg present a nanometre-sized light antenna with electrically modulated surface properties – a breakthrough that could pave the way for faster computer chips.