MIT researchers developed a photon-shuttling “interconnect” that can facilitate remote entanglement, a key step toward a practical quantum computer.

PsiQuantum today announces Omega, a quantum photonic chipset purpose-built for utility-scale quantum computing. Featured in a newly published paper in Nature, the chipset contains all the advanced components required to build million-qubit-scale quantum computers and deliver on the profoundly world-changing promise of this technology. Every photonic component is demonstrated with beyond-state-of-the-art performance. The paper shows high-fidelity qubit operations, and a simple, long-range chip-to-chip qubit interconnect – a key enabler to scale that has remained challenging for other technologies. The chips are made in a high-volume semiconductor fab, representing a new level of technical maturity and scale in a field that is often thought of as being confined to research labs. PsiQuantum will break ground this year on two datacenter-sized Quantum Compute Centers in Brisbane, Australia and Chicago, Illinois.

Quantum sensors pave the way for innovation in sensing technology. They are set to revolutionise a variety of sectors, spanning from health care to space and defence. VTT Technical Research Centre of Finland is at the forefront of quantum sensor development, aiming to commercialise the technology for the benefit of many. The research institute strongly believes that broader adoption of quantum technologies has a strong and positive societal and environmental impact.

Quantum states can only be prepared and observed under highly controlled conditions. A research team from Innsbruck, Austria, has now succeeded in creating so-called hot Schrödinger cat states in a superconducting microwave resonator. The study, recently published in Science Advances, shows that quantum phenomena can also be observed and used in less perfect, warmer conditions.

A study, led by the University of Portsmouth, has achieved unprecedented precision in detecting tiny shifts in light displacements at the nanoscale. This is relevant for example in the characterisation of birefringent materials and in high-precision measurements of rotations.

Scientists at EPFL have revealed how quantum interference and symmetry dictate molecular behavior in collisions with gold surfaces, offering new insights into molecular interactions. The findings can have important implications for chemistry and materials science.

Researchers at the University of Chicago unveil insights into random quantum circuits, exploring the speed at which random circuits scramble information. These findings, to be presented at the Quantum Information Processing Conference, are crucial for understanding quantum supremacy experiments as well as the future of quantum cryptography.

What if the waste heat generated by cars, factories, and even your laptop could be used to realize the next generation of energy-efficient quantum computers? Researchers at Illinois State University, in collaboration with the Air Force Research Laboratory (AFRL), have discovered an effect that may make that possible.

The research group led by Professor Luming Duan at the Institute for Interdisciplinary Information Sciences, Tsinghua University, made significant progress in the field of ion trap quantum simulation, observing for the first time the quantum superposition of topological defects in the experiment. The paper titled "Observation of quantum superposition of topological defects in a trapped ion quantum simulator" was recently published in Science Advances.

A team of experimentalists working with cold Rydberg atoms have used Quantum magnetometry to help the atomic clocks and magnetometers used for precise time keeping in navigation, telecommunication and aviation, achieve higher precision and make them additionally robust.