Quantum News and Headlines

Ripple Wants the XRP Ledger to Be Quantum-Proof by 2028. Here Is Its Plan
NewsApr 21, 2026

Ripple Wants the XRP Ledger to Be Quantum-Proof by 2028. Here Is Its Plan

Ripple announced a four‑phase roadmap to make the XRP Ledger quantum‑resistant by 2028. The plan starts with an emergency “Q‑day readiness” phase that would require all funds to move to quantum‑safe accounts and enable recovery via zero‑knowledge proofs. Subsequent phases...

By CoinDesk
Two Paths to Scalable Quantum Computing: Optical Links Between Fridges and Higher-Temperature Qubits
NewsApr 20, 2026

Two Paths to Scalable Quantum Computing: Optical Links Between Fridges and Higher-Temperature Qubits

Researchers led by Prof. Hong Tang reported two advances that could unlock large‑scale quantum computers. First, they built an electro‑optic transducer that converts microwave qubit signals to optical photons, enabling a 1‑km fiber link between separate dilution refrigerators without cryogenic...

By Phys.org (Quantum Physics News)
A Long-Sought Quantum Computing Milestone Arrives as Fermionic Atom Gates Top 99% Accuracy
NewsApr 20, 2026

A Long-Sought Quantum Computing Milestone Arrives as Fermionic Atom Gates Top 99% Accuracy

Two independent teams at the Max Planck Institute and ETH Zurich have demonstrated collisional quantum gates using fermionic lithium‑6 atoms, achieving two‑qubit gate fidelities above 99 %. Bojović’s group reported a peak accuracy of 99.75 %, while Kiefer’s team reached a loss‑corrected...

By Phys.org (Quantum Physics News)
Quantum Computing and Storage
NewsApr 20, 2026

Quantum Computing and Storage

OVHcloud has added Quantum Computing‑as‑a‑Service (QaaS) by offering Quandela’s 12‑qubit Belanos photonic quantum computer on a pay‑as‑you‑go basis. The quantum processor works alongside OVH’s traditional object storage, with data encoded into photonic states before each run and results post‑processed on...

By Blocks & Files
Quantum Computers Reveal Heat that Flows the Wrong Way
NewsApr 20, 2026

Quantum Computers Reveal Heat that Flows the Wrong Way

Researchers have applied machine‑learning algorithms to diagnose and classify noise sources in superconducting quantum processors, revealing anomalous heat flow that can reverse direction under certain operating conditions. The AI‑driven analysis pinpoints microscopic defects and thermal gradients within the chip, enabling...

By Advanced Science News
UK Startups Join DTC Quantum Incubator to Advance Practical Quantum Applications
NewsApr 19, 2026

UK Startups Join DTC Quantum Incubator to Advance Practical Quantum Applications

Four UK startups have joined the DeepTech Catalyst Quantum incubator, receiving up to $125,000 each in targeted R&D funding and access to Harwell's high‑performance facilities. The cohort—Curenetics, Coherence Engine, AmorphiQ and Qascade—focuses on quantum‑enhanced AI for cancer vaccines, hardware simulation...

By Quantum Computing Report
Could These 3 New-to-Market Quantum Computing Firms Threaten D-Wave?
NewsApr 19, 2026

Could These 3 New-to-Market Quantum Computing Firms Threaten D-Wave?

Newly listed quantum computing firms are gaining attention as potential challengers to D‑Wave. Horizon Quantum Holdings announced partnerships with IonQ and Alpine Quantum, while Infleqtion is scaling neutral‑atom qubits toward a 100‑qubit goal by 2028. Canadian photonics player Xanadu also...

By MarketBeat – News
Google Quantum AI Is Now Accepting Proposals for Early Access to Their Willow Quantum Processor
NewsApr 19, 2026

Google Quantum AI Is Now Accepting Proposals for Early Access to Their Willow Quantum Processor

Google Quantum AI announced an early‑access program for its Willow quantum processor, inviting external researchers to submit proposals. The initiative targets projects that can demonstrate high‑impact scientific breakthroughs or novel quantum results. Proposals must be submitted by May 15, 2026, with successful...

By Quantum Computing Report
Qjump: Shallow-Circuit Quantum Sampling Guides Combinatorial Optimization On up to 104 Superconducting Qubits, Qjump Assists in Searching the Ground States...
NewsApr 19, 2026

Qjump: Shallow-Circuit Quantum Sampling Guides Combinatorial Optimization On up to 104 Superconducting Qubits, Qjump Assists in Searching the Ground States...

Researchers at Zhejiang University introduced Qjump, a hybrid quantum‑classical algorithm that uses shallow quantum circuits to sample low‑energy states of Ising models. Demonstrated on a 104‑qubit superconducting processor, Qjump outperformed fixed‑parameter QAOA and a highly tuned simulated annealing baseline. The...

By Nanotech Now
Chemically Accurate Molecular Simulations Demonstrated on IQM Sirius Hardware
NewsApr 19, 2026

Chemically Accurate Molecular Simulations Demonstrated on IQM Sirius Hardware

Researchers from India, Singapore and the USA used IQM's 24‑qubit Sirius superconducting processor to achieve chemically accurate molecular simulations via Sample‑based Quantum Diagonalization (SQD). The study compared two ansätze—Local Unitary Cluster Jastrow (LUCJ) and Linear‑CNOT Unitary Coupled‑Cluster (LCNot‑UCCSD)—showing LUCJ’s shallow...

By Quantum Computing Report
European Consortium Launches €50 Million SPINS Pilot Line to Industrialize Semiconductor Quantum Chips
NewsApr 18, 2026

European Consortium Launches €50 Million SPINS Pilot Line to Industrialize Semiconductor Quantum Chips

The European Union’s Chips Act has funded a €50 million (≈$55 million) SPINS pilot line to industrialise semiconductor‑based spin‑qubit chips. Led by imec and backed by 25 partners—including Infineon, STMicroelectronics and Fraunhofer IPMS—the initiative creates a 300 mm CMOS pathway for Si/SiGe, Ge/GeSi and...

By Quantum Computing Report
SDT and IonQ Expand Strategic Cooperation via Resource Utilization Agreement
NewsApr 18, 2026

SDT and IonQ Expand Strategic Cooperation via Resource Utilization Agreement

South Korean quantum‑tech firm SDT Inc. has signed a resource utilization agreement with U.S. quantum‑computing leader IonQ, embedding IonQ’s trapped‑ion hardware into SDT’s hybrid cloud platform QuREKA. The deal transforms QuREKA from a connectivity gateway into an execution‑focused environment where...

By Quantum Computing Report
Jim Cramer Says “The Only Viable Quantum Businesses Belong to Google, IBM, and Honeywell (HON)”
NewsApr 18, 2026

Jim Cramer Says “The Only Viable Quantum Businesses Belong to Google, IBM, and Honeywell (HON)”

Jim Cramer highlighted that while many public companies tout quantum ambitions, only Google, IBM and Honeywell currently have viable quantum businesses. He pointed out Honeywell’s quantum unit, Quantinuum, will spin off later this year, with Honeywell retaining a 54% stake....

By Yahoo Finance – News Index
BitsStrategy Unveils a Quantum AI Trading App Designed for Faster, Data-Driven Trading Decisions
NewsApr 18, 2026

BitsStrategy Unveils a Quantum AI Trading App Designed for Faster, Data-Driven Trading Decisions

BitsStrategy announced a quantum AI trading app that leverages artificial intelligence to parse real‑time market data and generate faster, data‑driven trade signals. The app emphasizes a streamlined, app‑first experience, offering new registrants a $10 real‑earnings credit to encourage trial. By...

By Business Insider – Markets Insider