IBM Research Demonstrates Hybrid Spacetime PEC to Reduce Error-Mitigation Sampling Overhead by 63×

quantumcomputingreport.com Sep 20, 2026

IBM Research Demonstrates Hybrid Spacetime PEC to Reduce Error-Mitigation Sampling Overhead by 63×

Curated by Shubham · TechCapsules · Sep 20, 2026

AI-summarised brief · reviewed before publication

IBM Research unveiled Spacetime Probabilistic Error Cancellation (Spacetime PEC), a hybrid framework that combines Probabilistic Error Cancellation with post‑selected Quantum Error Detection. The method reduces sampling overhead by exploiting circuit syndrome data to eliminate single‑location errors, achieving up to a 63‑fold decrease in overhead compared to standard PEC. In experiments on a 27‑qubit heavy‑hex processor, Spacetime PEC restored ideal magnetization in Trotterized Ising dynamics while cutting total sampling effort dramatically. The approach bridges physical‑qubit mitigation and full fault‑tolerant quantum computing.

💡 Why It Matters

· By slashing sampling costs, Spacetime PEC makes large‑scale quantum simulations more feasible, accelerating progress toward practical quantum advantage.

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Fortaegis Technologies Raises $50 Million Series A to Deploy Hardware-Rooted Quantum-Safe Secure…

Fortaegis Technologies secured $50 million in Series A funding to advance its hardware‑rooted, quantum‑safe secure compute architecture. The company’s leadership features Ilyas Khan, founder of Quantinuum, as chairman, and founder‑CEO Boudewijn Wijnands, with Chris Miller on the U.S. board. Fortaegis’s silicon platform generates dynamic, quantum‑resistant encryption keys from microscopic manufacturing variations, avoiding permanent key storage and eliminating theft vectors. The firm reports 17 patents, 14 pending, and machine‑to‑machine speeds over 200 times faster than software cryptography. Funds will scale FPGA deployments and accelerate custom ASIC development for data centers, defense, telecom, and autonomous infrastructure.

💡 The technology offers a practical, silicon‑based defense against emerging quantum decryption threats, potentially redefining secure communications in high‑throughput AI and critical infrastructure sectors.

quantumcomputingreport.com · Sep 20

University of Pennsylvania Demonstrates Single-Gate Parallel Entanglement on Room-Temperature Diamond Quantum Register

University of Pennsylvania researchers created a four‑qubit Greenberger–Horne–Zeilinger state on a room‑temperature diamond quantum register, entangling the central electron spin of a nitrogen‑vacancy center with three nearby 13C nuclear spins in 14.8 µs. The team used a single XY8 dynamical‑decoupling sequence, turning crosstalk into parallel conditional gates and achieving a ten‑fold speedup over traditional sequential two‑qubit protocols. Gate fidelities reached 0.92 for the four‑qubit state, surpassing prior room‑temperature demonstrations. The method is scalable to other solid‑state platforms and supports quantum error correction and sensing.

💡 By converting unavoidable crosstalk into a resource, the work unlocks faster, higher‑fidelity entanglement in solid‑state systems, a critical step toward practical quantum processors that operate at ambient temperatures.

quantumcomputingreport.com · Sep 20

Who’s News: Strategic Appointments at Quantum Motion, SQC, Lawrence Semiconductor, and Pasqal

Quantum Motion promoted Dr. Anna Stockklauser to Chief Product Officer, expanding her oversight of global product strategy and hardware development as the company scales silicon spin‑qubit technology. Silicon Quantum Computing named John Hollister CFO, bringing two decades of financial leadership to support its atomic‑precision manufacturing roadmap and international expansion. Lawrence Semiconductor appointed Don Garrison as General Manager and COO to manage manufacturing, engineering, and quality across its Tempe cleanroom facilities. Pasqal added Roberto Mauro as CPO and Joëlle Lumb as CHRO to drive product roadmaps and talent strategy amid global growth.

💡 These appointments signal a concerted effort across the quantum‑hardware sector to align leadership with rapid commercialization, ensuring that technical innovation, financial stewardship, and operational excellence are tightly integrated as the industry moves from laboratory prototypes to market‑ready solutions.

quantumcomputingreport.com · Sep 19

Qtonic Quantum Corp Launches QShield for Immediate Software-Only Post-Quantum Network Protection

Qtonic Quantum Corp unveiled QShield, a software‑only post‑quantum cryptography runtime that secures active Linux network connections. The solution creates encrypted overlay tunnels using NIST‑approved algorithms—ML‑KEM‑1024 for key exchange, ML‑DSA‑87 for authentication, and AES‑256‑GCM for payload encryption—without hardware appliances or pre‑shared keys. A 72‑hour AWS endurance test logged 4,107 continuous checks with zero failures, demonstrating reliability. QShield aligns with upcoming federal mandates, including CNSA 2.0 and Executive Order 14412, targeting data‑center interconnects and high‑value financial channels.

💡 By eliminating hardware dependencies, QShield enables rapid, cost‑effective post‑quantum protection for critical networks, positioning operators to meet imminent federal security deadlines.

quantumcomputingreport.com · Sep 19

Sectigo Launches Quantum Ready™ Platform to Drive Enterprise Quantum Security Posture Management…

Sectigo has introduced Quantum Ready™, an enterprise platform that marks the company’s entry into the Quantum Security Posture Management (QSPM) market. The solution functions as an operating framework and continuous discovery engine, scanning hybrid‑cloud, application and network environments to locate public‑key infrastructure certificates, symmetric and asymmetric keys, encryption algorithms and related dependencies. It automatically creates and updates a Cryptographic Bill of Materials (CBOM), replacing static risk assessments with a system of record. Built under Chief Product Officer Ian Hassard, the platform feeds discovery data into Sectigo’s Certificate Manager to enable automated, crypto‑agile policy enforcement and certificate lifecycle updates. Currently offered through an early‑access program, Quantum Ready™ expands Sectigo’s post‑quantum cryptography portfolio and supports enterprises in meeting federal and commercial migration deadlines.

💡 Enterprises now have a live inventory of quantum‑vulnerable cryptography, turning an opaque risk into actionable migration paths before quantum‑capable attacks become feasible.

quantumcomputingreport.com · Sep 19

USA Rare Earth, Pasqal, and Riven Systems Partner to Advance Quantum ML…

USA Rare Earth, Pasqal, and Riven Systems announced a partnership to develop quantum machine learning (QML) models for separating heavy rare earth elements (REEs). Pasqal will supply neutral‑atom quantum processing units and QML algorithms, Riven will generate empirical training data through its autonomous chemistry lab, and USA Rare Earth will provide feedstock flowsheets and validate candidates at its Wheat Ridge, Colorado facility. The collaboration targets high‑selectivity extractants for dysprosium, terbium, and yttrium, aiming to reduce equipment, stages, and energy in commercial REE processing.

💡 By integrating quantum computing with automated chemistry, the alliance could accelerate the discovery of more efficient separation agents, potentially reshaping the supply chain for critical materials that power modern electronics and defense systems.