Two researchers from the Leibniz University Hannover demonstrate a dynamically adaptable, resource-minimised quantum key distribution exploiting the photon colours for the first time.

It is difficult to imagine a world more dynamic and at the same time more inaccessible than the inside of a proton. The complex interactions of its constituent quarks, gluons and the constantly ‘churning’ sea of virtual particles can now be coherently described thanks to the skilful use of the tools of quantum information theory and the phenomenon of quantum entanglement. The new, more than hitherto universal formalism has made it possible, for the first time, to explain data from all available measurements related to the scattering of secondary particles produced during deeply inelastic collisions between electrons and protons. The team responsible for the achievement include theorists from Brookhaven National Laboratory (BNL) and Stony Brook University (SBU) in New York, Mexico's Universidad de las Americas Puebla (UDLAP) and the Institute of Nuclear Physics of the Polish Academy of Sciences (IFJ PAN) in Cracow.

By linking theoretical predictions with neutron experiments, researchers have found evidence for quantum spin ice in the material Ce2Sn2O7. Their findings could inspire the technology of tomorrow, such as quantum computers. The results have been published in the journal ‘Nature Physics’.

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.

A recent study led by quantum researchers at the Department of Energy’s Oak Ridge National Laboratory proved popular among the science community interested in building a more reliable quantum network.

Quantum researchers from CSIRO, Australia’s national science agency, have demonstrated the potential for quantum computing to significantly improve how we solve complex problems involving large datasets, highlighting the potential of using quantum in areas such as real-time traffic management, agricultural monitoring, healthcare, and energy optimisation.

After recently presenting the most efficient implementation for quantum algorithms, such as the Quantum Fourier Transform, on a linear chain, ParityQC now introduces Parity Twine. The Parity Twine method sets a new world record in optimizing the two crucial metrics of gate count and circuit depth. It outperforms all known state-of-the-art methods for implementing prominent quantum algorithms across a wide range of quantum hardware, including linear, square grids, hexagonal, ladder and all-to-all connected devices.

Nu Quantum releases a Quantum Error Correction (QEC) theory paper demonstrating how a modular quantum computing architecture of interconnected processors is compatible with high-rate and efficient quantum error correction codes, charting a path towards fault-tolerant distributed quantum computing.

Scientists from Durham's top-rated Physics department have set a global milestone by achieving quantum entanglement of individual molecules using cutting-edge magic-wavelength optical tweezers. This achievement not only overcomes a fundamental challenge in quantum science but also opens up new possibilities in quantum computing, high-precision measurements, and physics research.

Currently, the most efficient way to create photon pairs requires sending lightwaves through a crystal large enough to see without a microscope. In a paper published today in Nature Photonics, a team led by Columbia Engineering researchers and collaborators, describe a new method for creating these photon pairs that achieves higher performance on a much smaller device using less energy. P. James Schuck, associate professor of mechanical engineering at Columbia Engineering, helped lead the research team.