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IEEE study reveals breakthroughs in high-performance photon detectors

Researchers developed a fabrication technique to overcome design challenges for scalable single-photon detectors, enabling ultra-fast detection of photons regardless of direction or polarization. The study provides a comprehensive guide to fabricating high-quality fractal SNSPDs with improved sensitivity and system detection efficiency.

SourceInstitute of Electrical and Electronics Engineers·JournalIEEE Journal of Selected Topics in Quantum Electronics·TypeExperimental study·DateFeb 13, 2025

Unique quantum simulator opens door to new research

Physicists have built a new type of digital-analogue quantum simulator that can study physical processes with unprecedented precision and flexibility. The simulator combines both digital and analogue operating modes, enabling it to be applied to various problems in solid-state physics, astrophysics, and more.

SourcePaul Scherrer Institute·JournalNature·TypeComputational simulation/modeling·DateFeb 6, 2025

Quantum algorithm distributed across multiple processors for the first time – paving the way to quantum supercomputers

Researchers successfully linked two separate quantum processors to form a single, fully connected quantum computer using photonic network interface. This breakthrough enables computations to be distributed across the network, addressing quantum's scalability problem and paving the way for industry-disrupting quantum computers.

SourceUniversity of Oxford·JournalNature·DateFeb 5, 2025

Calculating error-free more easily with two codes

Researchers at the University of Innsbruck have developed a method to switch between two error correction codes in an error-tolerant manner, making it easier to implement all required gates for computing. This breakthrough enables the quantum computer to efficiently suppress errors and improve calculation accuracy.

SourceUniversity of Innsbruck·JournalNature Physics·TypeExperimental study·DateJan 24, 2025

Large Hadron Collider regularly makes magic

A brotherly research duo has discovered a property known as magic when the LHC produces top quarks, which has implications for quantum computing and the development of quantum computers. The study explores how difficult it is for non-quantum computers to calculate quantum systems, with higher magic levels requiring more quantum computers.

Advancing a trustworthy quantum era: A novel approach to quantum protocol verification

Researchers developed Concurrent Dynamic Quantum Logic (CDQL) to verify quantum protocols with concurrent actions, enhancing expressiveness and speeding up verification. CDQL provides a rigorous framework for verifying both sequential and concurrent models of quantum protocols.

SourceJapan Advanced Institute of Science and Technology·JournalACM Transactions on Software Engineering and Methodology·DateDec 19, 2024

Rethinking the quantum chip

Researchers at UChicago Pritzker School of Molecular Engineering have designed a new architecture for scaling up superconducting quantum devices. The modular design allows for flexible operability and enables the connection of any two qubits within a few nanoseconds, promoting high-fidelity quantum gates and entanglement.

SourceUniversity of Chicago·JournalPhysical Review X·DateDec 10, 2024

Scientists develop novel high-fidelity quantum computing gate

Researchers at RIKEN Center for Quantum Computing successfully developed a novel double-transmon coupler (DTC) to enhance the fidelity of quantum gates. The DTC achieved high gate fidelity of 99.90% for a two-qubit device and 99.98% for a single-qubit gate, paving the way for fault-tolerant quantum computation.

SourceRIKEN·JournalPhysical Review X·TypeExperimental study·DateNov 21, 2024

DOE’s Quantum Computing User Program releases request for information to father input on quantum computing access

The Department of Energy's Quantum Computing User Program is releasing a Request for Information to gather input on current and upcoming availability of quantum computing resources. The program aims to understand the readiness of these resources for quantum computing research and engage with the diversity of stakeholders in the field.

In step forward for quantum computing hardware, IU physicist uncovers novel behavior in quantum-driven superconductors

Researchers have discovered a new phenomenon in quantum-driven superconductors that could lead to more precise control of driven quantum systems. The study, led by IU Professor Babak Seradjeh, explores the role of Floquet Majorana fermions in the Josephson effect and their potential for developing stable quantum computers.

SourceIndiana University·JournalPhysical Review Letters·TypeData/statistical analysis·DateNov 12, 2024

UCSB materials scientist Chris Van de Walle receives top computational physics award from the American Physical Society

Chris Van de Walle, a distinguished professor at UCSB, has been awarded the American Physical Society's 2025 Aneesur Rahman Prize for Computational Physics. He was recognized for his development and application of first-principles methods to compute structural, electronic, and optoelectronic properties of point defects and interfaces.

Cloud computing captures chemistry code

A team of scientists and experts led by PNNL has developed a cloud computing approach to democratize access to emerging resources. They demonstrated that cloud computing can provide an agile complement to high-performance computing facilities, enabling complex chemistry workflows to be completed in days instead of months. The initiativ...

SourceDOE/Pacific Northwest National Laboratory·JournalThe Journal of Chemical Physics·TypeComputational simulation/modeling·DateOct 21, 2024

Quantum researchers come up with a recipe that could accelerate drug development

Researchers at the University of Copenhagen's Quantum for Life Centre have developed a new mathematical recipe to make quantum simulators more scalable and efficient. This breakthrough could speed up the development of new medicines from years to months by predicting how molecules behave in the human body before laboratory trials.

SourceUniversity of Copenhagen - Faculty of Science·JournalNature Communications·DateOct 3, 2024

Lifting the veil of topological censorship

A recent study has lifted the veil of topological censorship by revealing a meandering conduction channel that can carry quantized bulk current. The researchers identified mechanisms that allow for tuning between qualitatively different microscopic implementations, challenging traditional theories.

SourceMax-Planck-Gesellschaft·JournalProceedings of the National Academy of Sciences·DateSep 25, 2024

Constriction junction, do you function?

Scientists from Brookhaven National Laboratory have developed a new type of qubit that can be easily manufactured without sacrificing performance. The constriction junction architecture offers a simpler alternative to traditional SIS junctions, using a thin superconducting wire instead of an insulating layer.

SourceDOE/Brookhaven National Laboratory·JournalPhysical Review A·DateSep 18, 2024

Powerful quantum error correction with a beautiful geometry

A new quantum error correction approach called 'many-hypercube codes' has been proposed to overcome scalability issues in conventional methods. This innovative approach allows for high-performance fault-tolerant quantum computing by enabling logical gates to be run in parallel, similar to classical computers.

SourceRIKEN·JournalScience Advances·TypeComputational simulation/modeling·DateSep 6, 2024

Quantum entanglement between electronic and motional states in cold-atom quantum simulator

The researchers have successfully demonstrated quantum entanglement between electronic and motional states in their ultrafast quantum simulator, generating a new quantum simulation method including repulsive force between particles. This achievement is expected to improve the fidelity of two-qubit gate operations and realize socially u...

SourceNational Institutes of Natural Sciences·JournalPhysical Review Letters·TypeExperimental study·DateSep 2, 2024