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Quantum Computing

22 GoKawiil briefs on this topic

PsiQuantum Unveils Optical Circuit Switch Based on Its Quantum Photonics Chips

PsiQuantum has revealed its first publicly disclosed Optical Circuit Switching device, an 8x8-radix demonstration built using the silicon photonics platform it originally developed for quantum computing. Lab testing showed 1.2 dB insertion loss, 40 dB crosstalk, and under 3 ms reconfiguration time without amplification, surpassing the company's initial targets. PsiQuantum is distributing samples to select prospective customers and plans to announce commercial products in coming months.

Quantum Computing Advances Prompt Researchers to Revisit Shelved Problems

Researchers say emerging quantum computing tools may allow them to reopen scientific and computational problems that were set aside decades ago because classical computers could not handle them. The report notes that quantum computing is frequently discussed alongside artificial intelligence, though the two technologies serve different purposes and address different kinds of problems.

RIKEN team cuts errors in simultaneous control of five silicon spin qubits

Researchers at the RIKEN Center for Emergent Matter Science, working with collaborators, demonstrated high-accuracy control of five silicon spin qubits operated at the same time over a shared microwave control line. The team identified a key source of errors that arises when qubits are driven simultaneously and developed a method to suppress it, publishing the results in Nature Physics.

Nature journal rounds up four new science and tech books for 2026

Nature's books-in-brief column highlights four forthcoming 2026 titles: Danni Holmes's primer on quantum physics, Barry Werth's history of US pharmaceutical research leadership, Xiaochang Li's study of language and algorithmic culture, and Paul Dobraszczyk's work on architecture. Each book is summarized briefly, covering topics from black holes and consciousness to drug development and large language models.

Anthropic says Claude designed quantum circuits beating published benchmarks

Anthropic reports that its Claude model, given plain-language specs for eight quantum circuits spanning chemistry, optimization, physics simulation and number theory plus an automated scoring evaluator, independently produced designs that outperform the best previously published circuits, in some cases by more than tenfold. The work was led by Andi Gu through Anthropic's STEM Fellows Program, with mentorship from quantum physicist Alek Kemeny and collaborators from Harvard University and QuEra Computing.

Google Research chief says AI's scientific contributions go underrecognized

Google Research's leadership discussed how the lab is applying AI across fields like quantum computing and neuroscience, including work modeling fruit fly brain activity. The lab's head argued that these scientific applications of AI receive far less public attention than consumer-facing AI products.

IonQ to buy cybersecurity firm Elisity in deal worth up to $1.3 billion

Quantum computing company IonQ announced it will acquire cybersecurity firm Elisity in an all-stock transaction valued up to $1.3 billion, including up to $150 million tied to performance earnouts. The deal, expected to close in the fourth quarter pending regulatory approval, will see Elisity retain its current leadership under CEO James Winebrenner. IonQ shares fell more than 9% following the announcement, with other quantum stocks like Rigetti Computing and D-Wave Quantum also declining.

DARPA advances four quantum firms to $300M QBI validation phase

DARPA announced after market close that it selected four companies to move into Stage C of its Quantum Benchmarking Initiative, a program designed to rigorously test quantum computing hardware. The stage carries roughly $300 million in funding, and DARPA indicated it may still admit additional firms in a second wave.

Oratomic Valued at $5.4 Billion Following $475 Million Series B

Oratomic, a quantum computing company, secured $475 million in its Series B funding round, significantly increasing its valuation to $5.4 billion. This comes only three months after its previous funding round, highlighting strong investor confidence in the emerging technology sector.

Quantum Computing Enters Practical Use for Real-World Problems

A new commentary argues that quantum computing has moved past theoretical promise into applied use, citing challenges like disease research, complex financial portfolio management, and secure communications as areas where current quantum tools can already contribute. The piece frames quantum computing as a usable technology today rather than a distant future capability.

Surrey researchers propose superfluid helium qubit design, claim 100x lower error rate

Physicists at the University of Surrey have designed a new type of qubit, the Superfluid Helium Oscillator Quantum (SHOQ) device, built from superfluid helium-3 rather than superconducting circuits. Published in npj Quantum Information, the team's calculations suggest the charge-neutral design could cut error rates roughly 100-fold compared with conventional superconducting qubits. Lead author Dr. Priya Sharma says it is the first reported qubit concept based on a superfluid.

UChicago-led team demonstrates universal gate set using non-Abelian anyons

Researchers from UChicago PME, Harvard, Stony Brook and Quantinuum built and tested a complete set of quantum operations based on non-Abelian anyons, publishing results in Nature. The team says this is the first experimental proof that manipulating these exotic quasiparticles can perform any computation required for universal quantum computing.