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Quantum device simulates matter popping into existence

A research team at the Duke Quantum Center has observed string-breaking dynamics related to particle-antiparticle formation on a quantum simulator. The experiment emulates a phenomenon where two connected fundamental building blocks of matter stretch apart, creating new particles when the connection snaps.

SourceDuke University·JournalNature Physics·TypeExperimental study·DateSep 23, 2026

Smart cable sharing gives quantum computers a big boost

Researchers at Chalmers University of Technology have demonstrated that several qubits can share the same cable without significantly increasing computation time. This breakthrough technique could enable large-scale quantum computers with thousands of well-functioning qubits, revolutionizing fields like drug development and logistics.

SourceChalmers University of Technology·JournalPRX Quantum·TypeComputational simulation/modeling·DateApr 14, 2026

World’s largest quantum circuit simulation for quantum chemistry achieved on 1,024 GPUs

Researchers have demonstrated a world-leading classical simulation of iterative quantum phase estimation circuits for quantum chemistry on up to 1,024 GPUs, expanding the scale of molecular systems available for the development and validation of quantum algorithms. This achievement supports progress toward industrial applications in dr...

SourceThe University of Osaka·TypeComputational simulation/modeling·DateMar 31, 2026

Quantencomputers go high-dimensional

Researchers have achieved a crucial building block for new quantum computers by realizing a novel type of quantum logic gate that works with pairs of photons in four different states, enabling new opportunities for optical quantum computing. This milestone opens up possibilities for faster calculations and improved stability.

SourceVienna University of Technology·JournalNature Photonics·TypeExperimental study·DateFeb 23, 2026

Robust frozen dynamics observed on a quantum system

Duke University researchers have observed statistical localization in a neutral-atom platform, where most configurations of quantum bits remain effectively frozen. This phenomenon has implications for robustly storing information in a quantum system and could be a powerful feature of quantum mechanics.

SourceDuke University·JournalNature Physics·TypeExperimental study·DateFeb 18, 2026

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 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

Using “shallow shadows” to uncover quantum properties

Researchers at UC San Diego develop novel approach to extract essential information from quantum systems, outperforming traditional methods in accurately predicting diverse quantum state properties. Experimental validation demonstrates the effectiveness of this technique in characterizing quantum states despite realistic noise.

SourceUniversity of California - San Diego·JournalNature Communications·TypeExperimental study·DateApr 29, 2025

Breakthrough achievement: Efficient simulation of Google’s 53-qubit sycamore quantum circuit

Researchers successfully simulated Google's 53-qubit Sycamore quantum circuit using sophisticated tensor network contraction techniques and advanced slicing methods. The approach reduced memory usage while maintaining computational effectiveness, enabling the simulation of complex quantum circuits with modest resources.

SourceScience China Press·JournalNational Science Review·TypeComputational simulation/modeling·DateApr 17, 2025

Zuchongzhi-3 sets new benchmark with 105-qubit superconducting quantum processor

Zuchongzhi-3 achieves quantum supremacy by outperforming classical supercomputers by 15 orders of magnitude, demonstrating the strongest quantum computational advantage in a superconducting system to date. The processor features 105 qubits and 182 couplers, with a coherence time of 72 μs and simultaneous gate fidelities exceeding 99%.

SourceChinese Academy of Sciences Headquarters·JournalPhysical Review Letters·TypeExperimental study·DateMar 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

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

Towards error-free quantum computing: A symbolic model checking approach to verify quantum circuits

Researchers developed a symbolic model checking approach to verify quantum circuits, addressing the gap between model-checking quantum programs and quantum circuits. They used Maude programming language to formally specify and verify quantum circuits, confirming their correctness and paving the way for error-free quantum computing.

SourceJapan Advanced Institute of Science and Technology·JournalPeerJ Computer Science·DateJun 21, 2024

JPMorgan Chase, Argonne and Quantinuum show theoretical quantum speedup with the quantum approximate optimization algorithm

Researchers at JPMorgan Chase, Argonne National Laboratory and Quantinuum show a quantum algorithmic speedup for the QAOA algorithm on the Low Autocorrelation Binary Sequences problem. The team demonstrates a significant step towards reaching quantum advantage, laying the foundation for future impact in production.

SourceDOE/Argonne National Laboratory·JournalScience Advances·DateMay 29, 2024

Developed compiler acceleration technology for quantum computers

Researchers developed a probabilistic approach to generate optimal sequences for execution on quantum computers, reducing search time by several orders of magnitude. The new method enables efficient searches within classical computational resources, contributing to the realization of the quantum Internet and improved performance.

SourceNational Institute of Information and Communications Technology (NICT)·JournalPhysical Review A·TypeComputational simulation/modeling·DateMay 9, 2024

Novel quantum algorithm for high-quality solutions to combinatorial optimization problems

Researchers have proposed an innovative quantum algorithm that effectively solves combinatorial optimization problems with constraints in a short time. The pVSQA algorithm uses a quantum device to generate a variational quantum state and transform infeasible solutions into feasible ones, achieving near-optimal performance.

SourceWaseda University·JournalIEEE Transactions on Quantum Engineering·TypeComputational simulation/modeling·DateMar 25, 2024

Rice’s Nai-Hui Chia wins NSF CAREER Award

Nai-Hui Chia, an assistant professor of computer science at Rice University, has received a National Science Foundation CAREER Award to develop a new theoretical framework for efficient quantum algorithms. The grant aims to enhance the security of quantum cryptography and tackle complex problems in physics and machine learning.

World’s first logical quantum processor

A Harvard University team has created the world's first logical quantum processor, which can encode up to 48 logical qubits and execute hundreds of gate operations. This breakthrough is a significant step toward reliable quantum computing and fault-tolerant quantum computation.

SourceHarvard University·JournalNature·TypeExperimental study·DateDec 7, 2023