Research teams led by Prof. PAN Jianwei, LU Chaoyang, HU Yongheng, and others have realized a high-performance single-photon source with an efficiency beyond the scalable linear optical quantum computing loss tolerance threshold for the first time, and the comprehensive indicators have reached the international advanced level. The results were published in Nature Photonics on February 28th.

The University of Oxford research group led by OQC CSO Dr. Peter Leek today announced research demonstrating a fundamental speedup of the controlled-Z gate in superconducting qubits reaching a fidelity of 99.8% in only 25 ns.

Scientists from the RIKEN Center for Emergent Matter Science (CEMS) and collaborators have discovered a groundbreaking way to control superconductivity—an essential phenomenon for developing more energy-efficient technologies and quantum computing—by simply twisting atomically thin layers within a layered device. By adjusting the twist angle, they were able to finely tune the “superconducting gap,” which plays a key role in the behavior of these materials. The research was published in Nature Physics.

Xanadu, a leader in photonic quantum computing, has published a research article in the peer-reviewed journal Physical Review Letters, demonstrating how photonic qubits can be used to enact any quantum error correction (QEC) code—including codes that use a lot less qubits to suppress errors. This work opens the door to reducing the number of physical qubits needed for early fault-tolerant quantum computation, while preserving an error correction threshold comparable to other performant QEC codes. The flexibility and feasibility of Xanadu's photonic approach is highlighted, especially when considering the finite qubit resources that will be available in early utility-scale quantum computers.

QuamCore, a deep tech startup redefining quantum computing scalability, announced today its emergence from stealth with $9 million in seed funding. Founded in 2022, QuamCore has spent the past two years developing its breakthrough superconducting quantum processor architecture, working in stealth mode to solve the critical scalability challenges that have long prevented practical quantum computing. The company has now emerged with a patented architecture that enables the integration of 1 million qubits into a single cryostat - a milestone previously thought impossible. This breakthrough dramatically reduces the size, energy consumption, and cost of quantum computers, unlocking practical applications across pharmaceuticals, AI, materials science, and energy.

Newly achieved precise control over light emitted from incredibly tiny sources, a few nanometers in size, embedded in two-dimensional (2D) materials could lead to remarkably high-resolution monitors and advances in ultra-fast quantum computing, according to an international team led by researchers at Penn State and Université Paris-Saclay.

A research team co-led by Lawrence Berkeley National Laboratory (Berkeley Lab), Columbia University, and Universidad Autónoma de Madrid has developed a new optical computing material from photon avalanching nanoparticles.

The research group led by Prof. Yunfei Pu and Prof. Luming Duan from Tsinghua’s Institute for Interdisciplinary Information Sciences has recently achieved multiplexing-enhanced generation of heralded atom-photon quantum entanglement over a 12 km fiber with a cold atom quantum repeater node. This work breaks several world records for metropolitan-scale (>10 km) quantum network.

Terra Quantum and BBVA have successfully completed a pilot project, demonstrating the potential of AI-driven and quantum-inspired methods to enhance the speed and efficiency of exotic derivatives pricing.

An international team of researchers led by the Strong Correlation Quantum Transport Laboratory of the RIKEN Center for Emergent Matter Science (CEMS) has demonstrated, in a world’s first, an ideal Weyl semimetal, marking a breakthrough in a decade-old problem of quantum materials.