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U-M quantum testbed enables remote experiments

Researchers at U-M have established a quantum testbed that links two labs with optical fibers, enabling remote quantum experiments and expanding access to quantum technology development. The testbed allows for the transfer of entangled light over long distances, revolutionizing communication, computing, and scientific discovery.

The mathematical foundation of post-quantum cryptography

This article introduces post-quantum cryptography, emphasizing its mathematical foundation in lattice theory and positive definite quadratic forms. The study explores the shortest vector problem (SVP) and closest vector problem (CVP), crucial problems for further development of lattice-based cryptography.

SourceResearch·JournalResearch·TypeNews article·DateSep 8, 2025

Rice algorithms take on quantum adversary

Rice University computer scientists have developed algorithms that account for malicious noise in quantum states, which can collapse into a single random outcome. The new framework considers nonphysical and potentially malicious factors, delivering optimal results with sufficiently large copies of a quantum state.

New material design strategy unlocks magnetic tunability in quasicrystal approximants

Researchers develop a method to transform spin-glass-like quasicrystals into ferromagnetic materials with tunable magnetic properties and strong magnetocaloric response. The technique enables expanded electron-to-atom ratios, unlocking new possibilities for designing high-performance magnetic refrigeration materials.

SourceTokyo University of Science·JournalJournal of the American Chemical Society·TypeExperimental study·DateAug 27, 2025

New benchmark in secure quantum communication

Physicists have developed a breakthrough concept in quantum encryption that uses innovative protocols applied to tiny quantum dots to send encrypted information securely, even with imperfect light sources. The new approach outperforms current systems and has the potential to bring quantum-safe communication closer to everyday use.

SourceThe Hebrew University of Jerusalem·JournalPRX Quantum·TypeExperimental study·DateAug 21, 2025

A smart accelerator for qubits

Researchers at the University of Basel have developed a smart accelerator for qubits, increasing both speed and coherence time simultaneously. By exploiting spin-orbit coupling, they created a 'plateau' effect that reduces fluctuations and allows for faster operation without sacrificing coherence.

SourceUniversity of Basel·JournalNature Communications·DateAug 18, 2025

Yonsei University researchers directly measure quantum metric tensor in real material

Researchers at Yonsei University have successfully measured the full quantum metric tensors of Bloch electrons in solids, a breakthrough that could lead to advanced semiconductor technologies and higher transition-temperature superconductors. The study used black phosphorus as a representative material for photoemission measurements.

SourceYonsei University·JournalScience·TypeExperimental study·DateAug 6, 2025

Magnetizing quantum communication

Researchers at Kyoto University have developed a new method to strengthen the brightness of single-photon light sources using magnetism. By introducing defects into a two-dimensional semiconductor, they were able to enhance the emission intensity even under weak magnetic fields.

SourceKyoto University·JournalScience Advances·TypeExperimental study·DateJul 27, 2025

Theory-guided strategy expands the scope of measurable quantum interactions

Researchers at MIT develop a new method to directly measure the strength of electron-phonon interaction in semiconductors, a crucial property for next-generation microelectronic devices and quantum computers. This approach leverages an oft-overlooked interference effect in neutron scattering to detect electron-phonon interactions.

SourceMassachusetts Institute of Technology·JournalMaterials Today Physics·DateJul 24, 2025

Human-AI ‘collaboration’ makes it simpler to solve quantum physics problems

Scientists use human-AI collaboration to tackle complex questions in condensed matter physics, leveraging machine learning algorithms to identify patterns in simulation data. This approach successfully models the behavior of frustrated magnets and sheds light on quantum computing and gravity.

SourceOkinawa Institute of Science and Technology (OIST) Graduate University·JournalPhysical Review Research·TypeComputational simulation/modeling·DateJul 16, 2025

First electronic–photonic quantum chip created in commercial foundry

Researchers from Boston University and Northwestern University develop a system that integrates quantum light sources and control electronics on a single piece of silicon, creating reliable streams of correlated photon pairs. The advance enables mass-producible 'quantum light factory' chips and large-scale quantum systems.

SourceBoston University·JournalNature Electronics·TypeComputational simulation/modeling·DateJul 14, 2025

Decoding quantum advantage

Researchers at Kyoto University have characterized quantum advantage by proving an equivalence between its existence and the security of certain cryptographic primitives. This breakthrough implies that when quantum advantage does not exist, many conventional cryptographic primitives are broken, including post-quantum ones.

SourceKyoto University·TypeComputational simulation/modeling·DateJul 13, 2025

World-unique method enables simulation of error-correctable quantum computers

Researchers have developed a world-first method to simulate specific types of error-corrected quantum computations, a significant leap forward in the quest for robust quantum technologies. The new algorithm tackles a long-standing challenge in quantum research and enables accurate simulation using conventional computers.

SourceChalmers University of Technology·JournalPhysical Review Letters·TypeExperimental study·DateJul 2, 2025

Smart amplifier enabler for more qubits in future quantum computers

Researchers at Chalmers University of Technology have developed a highly efficient amplifier that activates only when reading information from qubits. The amplifier consumes just one-tenth of the power consumed by the best amplifiers available today, reducing qubit decoherence and laying the foundation for more powerful quantum computers.

SourceChalmers University of Technology·JournalIEEE Transactions on Microwave Theory and Techniques·TypeExperimental study·DateJun 25, 2025

Boson sampling finds first practical applications in quantum AI

Researchers from OIST develop new quantum AI method for image recognition based on boson sampling, achieving highly accurate results without complex training. The approach uses a linear optical network and preserves information, outperforming classical methods in various datasets.

SourceOkinawa Institute of Science and Technology (OIST) Graduate University·JournalOptica Quantum·TypeComputational simulation/modeling·DateJun 24, 2025

Magically reducing errors in quantum computers

Researchers from The University of Osaka develop a method to prepare high-fidelity 'magic states' for use in quantum computers with less overhead and unprecedented accuracy. This breakthrough aims to overcome the significant obstacle of noise in quantum systems, which can ruin computer setups.

SourceThe University of Osaka·JournalPRX Quantum·TypeComputational simulation/modeling·DateJun 19, 2025