Author: Anne

Toshiba Quantum Key Distribution Technology for Multiplexing Over 30 Tbps of High-Capacity Data and Secret Keys https://www.global.toshiba/ww/news/digitalsolution/2025/03/news-20250326-01.html

Coherent quantum communications can be deployed on standard telecommunications infrastructure. The key breakthrough is a new system architecture that replaces unwieldy, complex cryogenic components with simple semiconductor-based devices. For the first time in a real-life deployment, quantum information encoded in the phase of a quantum light signal was shown to be perfectly stable, despite propagating over 250 km of deployed telecom fibre, using only off-the-shelf components and operating in a typical colocation data centre at room temperature.

https://www.toshiba.eu/newsroom/toshiba-breakthrough-brings-quantum-communications-to-existing-national-scale-telecommunications-infrastructure/

integrated PQC & QKD solution for quantum-safe networking https://www.toshiba.eu/quantum/news/toshiba-announces-integrated-pqc-qkd-solution-for-quantum-safe-networking/Quantum network in Germany https://www.toshiba.eu/quantum/news/toshiba-breakthrough-on-national-quantum-networking/ Key breakthrough is the use of semiconductor avalanche photodiodes.

Google Quantum paper Generative Quantum AI https://arxiv.org/pdf/2509.09033 “quantum enhanced generative models with provable advantage” 

As a key application, we theoretically and experimentally demonstrate advantage in sampling from classical distributions that are classically intractable, scaling up to 816 shallow qubits with inferred results beyond 34,000 shallow qubits. This is enabled by an exact deep-to-shallow circuit mapping that allows exact sampling from very deep 2D circuits, which we prove are universal. (d) We prove that learning to generate compressed quantum circuits for physical simulation is classically hard. This stands in sharp contrast to the efficient techniques for learning to generate low-depth circuits demonstrated here experimentally on a real device using up to 40 physical qubits.

The success of ML has been largely driven by the availability of data, and at its heart, the universe and its data are quantum. Quantum machine learning has a unique opportunity to take advantage of this data in its natural form, and we believe that for generative processes involving quantum data, quantum computers will be essential.

Summary https://quantumcomputingreport.com/google-quantum-ai-researchers-demonstrate-generative-quantum-advantage-for-classical-and-quantum-problems/

Quantum Motion – computer at UK National Quantum computing centre https://quantummotion.tech/quantum-motion-delivers-the-industrys-first-full-stack-silicon-cmos-quantum-computer/ 

The system integrates a Quantum Processing Unit (QPU) with a user interface and control stack compatible with industry standard software frameworks such as Qiskit and Cirq. The company’s architecture and manufacturing approach are designed to scale to a fault-tolerant system. The system demonstrates single- and two-qubit operations, initialization, and readout within a compact architecture that has a data-center-friendly footprint of three 19” server racks. This design allows systems to be easily upgraded by installing future generation QPUs

Q-CTRL DARPA awards – navigation sensors https://q-ctrl.com/blog/darpa-selects-q-ctrl-to-develop-next-generation-quantum-sensors-for-navigation-on-advanced-defense-platforms

https://q-ctrl.com/ironstone-opal

MIT quantum Index report (June 2025) https://qir.mit.edu/ 

https://www.yumpu.com/en/document/read/70553845/2025-mit-quantum-index-report

28 quantum networking test beds in US and Europe

39% of quantum communications research papers coming from China; US 12%, everywhere else less than 5%

Section 9 – different ways to do quantum computing “modalities” 

Quantum network at Montana State University Qunnect

https://quantumcomputingreport.com/qunnect-deploys-carina-product-suite-for-quantum-entanglement-network-at-montana-state-university/

Also in New York and Berlin https://www.qunnect.inc/press-release-2025-09-09 

The Carina product suite integrates Qunnect’s 1) atom-based, entangled-photon generators, 2) single photon counting detectors with high resolution time tagging, and 3) adaptive polarization compensation, entanglement validation and orchestration into a single rack-mount unit. Key features include:

• High-rate entangled pair generation at telecom wavelengths for up to 100 km fiber spans
• Real-time polarization stabilization to maintain fidelity over changing environmental conditions
• Modular interface for seamless integration with existing DWDM networks and classical data channels

Psi Quantum https://www.reuters.com/business/psiquantum-valued-7-billion-latest-funding-round-teams-up-with-nvidia-2025-09-10/ 

https://www.investors.com/news/technology/quantum-computing-stocks-nvidia-psiquantum-quera/

https://www.optica-opn.org/home/industry/2025/september/psiquantum_raises_us$1_billion/

“Nearly nine years after we started, we have pushed the technology to an unprecedented level of maturity and performance” said Pete Shadbolt, PsiQuantum cofounder and Chief Scientific Officer. “We have the chips, we have the switches, we have a scalable cooling technology, we can do networking, we have found the sites, we have the commercial motive and the government support—we’re ready to get on and build utility-scale systems.”https://arxiv.org/html/2404.17570v1 26 Apr 2024  A manufacturable platform for photonic quantum computing with photons Global Foundries Has switches. List of required improvements.

HPC prep https://insidehpc.com/2025/09/hyperion-research-and-alice-bob-report-on-how-hpc-centers-can-prepare-for-quantum/ 

Quantum computing application lists and trends in capability https://alice-bob.com/wp-content/uploads/2025/08/Seizing-Quantum-Edge-eFTQC-HPC-Report-Alice-Bob.pdf 

“Alice & Bob is a quantum computing company based in Paris and Boston whose goal is to create the first universal, fault-tolerant quantum computer. Founded in 2020, Alice & Bob has already raised €130 million in funding, hired over 150 employees and demonstrated experimental results surpassing those of technology giants such as Google or IBM. Alice & Bob specializes in cat qubits, a pioneering technology developed by the company’s founders and later adopted by Amazon. Demonstrating the power of its cat architecture, Alice & Bob recently showed that it could reduce the hardware requirements for building a useful large-scale quantum computer by up to 200 times compared with competing approaches.”

Wilson Sonsini on IP strategy for quantum  “We’re seeing a shift from research-heavy moonshots to more application-oriented investments—companies developing near-term commercial use cases like quantum sensing, quantum-secure communications, and hybrid AI systems. VC interest will likely follow the path we saw with AI: from foundational tools to vertical-specific applications. Expect to see more funding into enabling technologies, such as cryogenic systems, photonics, and error-correction software.”

Phasecraft Quantum algorithms https://www.phasecraft.io/ for simulation Funding https://www.phasecraft.io/news/phasecraft-raises-34-million-from-plural-playground-novo The company’s core business is to design quantum algorithms that significantly reduce the hardware requirements—such as the number of qubits and circuit depth—needed to solve complex problems, thereby accelerating the timeline to achieving quantum advantage. Phasecraft’s revenue model is centered on partnerships with both quantum hardware manufacturers and companies in various industries that stand to benefit from quantum computation. By collaborating with hardware leaders like Google, IBM, Rigetti, Quantinuum, and QuEra, Phasecraft gains access to the most advanced quantum processors to test and refine its algorithms. “Our algorithms are delivering meaningful results now, whether it’s simulating the physics of complex materials or optimizing the structure of a large energy network “

https://www.reuters.com/business/honeywells-quantinuum-raises-funds-nvidia-others-10-billion-valuation-2025-09-04/ Honeywell’s Quantinuum $10b raise; lining up to IPO

Phasecraft – algorithms https://www.phasecraft.io/news/phasecraft-raises-34-million-from-plural-playground-novo Bristol, London

https://www.ft.com/content/51f293fb-4e43-415b-80a6-516c7b2932ea Quantum hardware hasn’t improved enough yet to run these algorithms ..

There was a peal of bells, ringing Stedman Doubles, to celebrate the art of bellringing at St Marys in Edinburgh.

More quantum computing and networking material. I’m reading in to the topic, looking for examples of actual utility as well as examples of investment for building out infrastructure.

Q-CTRL Calibration for quantum computing https://q-ctrl.com/technology/quantum-computer-autocalibration? a robust state machine that orchestrates routines from the Function Library, translating them into controller-specific commands and executing them on local hardware. Measurement data flows back for analysis, powering a continuous feedback loop that enhances system performance over time.

Rigetti 2Q results PR https://www.globenewswire.com/news-release/2025/08/12/3132141/0/en/Rigetti-Computing-Reports-Second-Quarter-2025-Financial-Results-Announces-General-Availability-of-its-36-Qubit-Multi-Chip-Quantum-Computer.html $350m raise Cepheus-1-36Q is the first multi-chip quantum computer in the industry to achieve this level of performance, and with four chips, contains the largest number of chiplets in a quantum computer. Superconducting qubits. Enhanced intermodule coupler design: Advances in multi-layer chip and tunable coupler design enables higher performance.

Trapped Ions Quantum computing Oxford Ionics https://tech.eu/2025/08/13/oxford-ionics-installs-quantum-computer-at-nqcc $20m revenue
Cloudflare on security for Post Quantum Computing https://www.eetimes.com/inside-the-pqc-overhaul-a-year-later/ Cloudflare has already integrated post-quantum key agreements into the majority of its infrastructure. “Post-quantum encryption is already becoming the default,” Westerbaan said. “I expect that within a year, most TLS connections on the internet will be quantum-secure.” Nevertheless, full migration across hardware, embedded systems, and critical infrastructure will take much longer.

https://www.businesswire.com/news/home/20250715219783/en/IonQ-Completes-Acquisition-of-Capella-Space-Advancing-Vision-for-Space-Based-Quantum-Communications IonQ buys Capella Space – Quantum Key Distribution via satellite 

Funding $1.6B rolling up other quantum functions https://uk.finance.yahoo.com/news/ionq-secures-1-6-billion-190000833.html 

IonQ press https://investors.ionq.com/news/default.aspx Chemical simulation https://investors.ionq.com/news/news-details/2025/IonQ-Speeds-Quantum-Accelerated-Drug-Development-Application-With-AstraZeneca-AWS-and-NVIDIA/default.aspx IonQ and its partners demonstrated a large-scale, end-to-end simulation of a Suzuki-Miyaura reaction, which is the most complex chemical simulation run on IonQ hardware to date. (catalytic reaction with palladium for organic chemistry) The hybrid quantum-classical workflow – orchestrated via CUDA-Q on Amazon Braket, accelerated with NVIDIA H200 GPUs through AWS ParallelCluster – delivered more than a 20x speedup in time-to-solution compared to prior benchmarks. This advancement highlights the scalability of IonQ’s quantum systems and their practical potential in pharmaceutical R&D.

Isolated quantum virtual machines https://techxplore.com/news/2025-07-quantum-bottlenecks-breakthroughs.html HyperQ https://www.usenix.org/system/files/osdi25-tao.pdf