IBM, Mitsubishi Chemical, and Keio Train Generative Quantum Eigensolvers on 70-Qubit Hardware

quantumcomputingreport.com Nov 12, 2026

IBM, Mitsubishi Chemical, and Keio Train Generative Quantum Eigensolvers on 70-Qubit Hardware

Curated by Shubham · TechCapsules · Nov 12, 2026

AI-summarised brief · reviewed before publication

A consortium of IBM Quantum, Mitsubishi Chemical, Keio University, and NVIDIA trained autoregressive quantum circuit generators on IBM’s 156‑qubit Heron processor, creating 70‑qubit generative quantum eigensolver (GQE) policies. The policies, trained via a two‑stage reinforcement‑learning curriculum, were applied zero‑shot to simulate organotin photoresist molecules for extreme‑ultraviolet lithography. The approach uses Sample‑based Quantum Diagonalization to sample key bitstrings, after which classical processors reconstruct the active subspace and diagonalize the Hamiltonian. The work demonstrates scalable quantum‑classical hybrid training on large‑scale hardware.

💡 Why It Matters

· The study shows that deep quantum circuits can be trained directly on noisy, large‑scale hardware, bypassing the gate‑depth limits of traditional ansätze.
· This paves the way for practical quantum simulations of complex molecules that are intractable for classical methods.

Capsules Quantum Computing

Read full article on quantumcomputingreport.com

Xanadu Reports Revenue Growth as Photonic Partnerships and Government Support Expand

Xanadu reported third‑quarter revenue of $1.3 million, a 32% increase from the prior year, while ending September with $286.5 million in cash. The company highlighted progress in reducing optical loss, new manufacturing ties with ASML, Bluefors, and GlobalFoundries, and the launch of Backline with AMD. It secured a $140 million Canadian loan and provisional approval for up to $10 million from DARPA. Net loss widened to $32.2 million, driven by higher R&D spending.

💡 The firm’s advances in optical loss reduction and new industry partnerships accelerate the path toward scalable photonic quantum processors, positioning it as a key player in the emerging quantum‑data‑center market.

quantumcomputingreport.com · Nov 12

Xanadu Reports Q3 2026 Results with $286M Cash Balance and Expanding R&D…

Xanadu reported third‑quarter 2026 results, posting a 32% year‑over‑year revenue rise to $1.31 million while expanding R&D spending to $25.56 million. The company maintained an unrestricted cash balance of $286.47 million and secured roughly $150 million in new sovereign funding. Revenue growth was driven by DARPA Quantum Benchmarking Initiative contracts and commercial partner milestones. Operating losses widened due to increased tapeout volumes and experimental wafer fabrication. Capital expenditures totaled $8.4 million, mainly for precision optical test equipment.

💡 The firm’s robust liquidity and new government backing position it to scale photonic quantum hardware ahead of its logical‑qubit roadmap, potentially accelerating commercial deployment.

thequantuminsider.com · Nov 12

CyberRisk Collaborative Announces Virtual Event on Post-Quantum Readiness

CyberRisk Collaborative announced a virtual event, “Post‑Quantum Readiness: Preparing for Q‑Day,” scheduled for January 26, 2027. The program targets CISOs and senior security leaders, offering five 20‑minute sessions on quantum‑computing risks, cryptographic asset inventory, post‑quantum standards, migration planning, and enterprise governance. Speakers include representatives from the Foundation for Defense of Democracies, SAP, Georgia Tech, Citi, and NewYork‑Presbyterian Hospital. Sessions will be available on demand after the live event.

💡 The event equips leaders with actionable strategies to counter the looming threat of quantum‑enabled cryptographic breakage, ensuring long‑term data protection and regulatory compliance.

quantumcomputingreport.com · Nov 12

Patero and Horizen Labs Partner on Enterprise Post-Quantum Migration and Network Protection

Patero and Horizen Labs announced a commercial partnership to help enterprises migrate to quantum‑resistant encryption. The alliance blends Horizen Labs’ quantum‑risk advisory with Patero’s automated discovery and hybrid encryption platforms, enabling clients to map cryptographic assets, prioritize migration phases, pilot live‑traffic trials, and validate rollback paths. The collaboration addresses the engineering challenges of replacing legacy public‑key algorithms embedded across distributed services and third‑party software, providing a structured framework for secure, phased transitions.

💡 The partnership offers a practical roadmap for businesses to safeguard data against future quantum threats, reducing the risk of costly, disruptive overhauls. It signals a growing industry focus on actionable, end‑to‑end quantum‑security solutions.

thequantuminsider.com · Nov 12

Qunova’s Hybrid Computing Method Matches Classical Benchmark for Iron-Sulfur Cluster

Qunova Computing’s HI‑VQE algorithm achieved chemical accuracy in an 80‑qubit simulation of a 4Fe‑4S iron‑sulfur cluster, matching the leading classical DMRG benchmark. The hybrid workflow used an IBM Quantum System Two device and RIKEN’s Fugaku supercomputer, delivering an extrapolated ground‑state energy of −327.2482 ± 0.0007 Ha. HI‑VQE required roughly 300 times fewer Fugaku node‑hours than prior quantum diagonalization methods, marking the most accurate quantum computation of this molecule to date.

💡 The result demonstrates that quantum algorithms can now rival the precision of the best classical methods for complex, industrially relevant molecules, paving the way for practical quantum‑enhanced chemistry in pharmaceuticals and materials science.

quantumcomputingreport.com · Nov 12

IBM Unveils 520-Qubit Nighthawk r3 Processor, 1,040-Qubit Linked Roadmap, and Managed Hybrid…

At QDC 2026 in Yorktown Heights, IBM announced the Nighthawk r3 superconducting processor, slated for 2027, capable of 10,000 operations on 520 qubits and a planned 1,040‑qubit linked system. The company highlighted 34 billion circuits run by its Nighthawk r2 fleet, delivering up to 19× speedups over Heron. Breakthroughs include 99.3% fidelity l‑couplers, sub‑15 mK dual‑module cryogenics, and a new Managed Workflows stack with Resource Units billing. The announcement also introduced advanced software tools, a Rust‑based resource interface, and large‑scale hybrid job capabilities.

💡 IBM’s roadmap to a 1,040‑qubit system and high‑fidelity interconnects signals a tangible step toward fault‑tolerant quantum computing, directly addressing the scalability gap that has stalled practical applications. The integrated Managed Workflows platform demonstrates how quantum‑classical orchestration can accelerate real‑world research, potentially shortening the time from simulation to discovery in chemistry and materials science.