The Quantum Technician 11-11-2025
🔧 Quantum Hardware & Systems
The Architecture Blueprint for Hybrid Quantum-Classical Supercomputers (quantum-machines​.co). Hybrid quantum-classical computing blueprint integrating OPX1000 control, NVQLink, DGX Quantum, CUDA-Q, and QEC across ultralow to millisecond latencies
Princeton puts quantum computing on the fast track with new qubit (princeton​.edu). Princeton engineers unveil a tantalum-silicon superconducting qubit with coherence times over 1 ms, boosting prospects for scalable quantum computing
Video EP11: Meeting the Challenges of Superconducting Quantum System Design with Mohamed Hassan (semiwiki​.com). Mohamed Hassan from Keysight discusses superconducting quantum system design challenges and EDA needs for quantum devices
Two independent quantum networks successfully fused into one (phys​.org). Two independent quantum networks fuse into one 18-user network using multi-user entanglement swapping and ATWM in Nature Photonics study
🧠Theory, Crypto & Blogs
Tree-eval, catalytic computation, simulating time with square-root space (emanueleviola​.wordpress​.com). Tree evaluation and catalytic computation show how to simulate time on multi-tape machines using square-root space and circuit transformations by CM24, Wil25, Sha25
Natural quantum MCMC (xianblog​.wordpress​.com). Natural quantum MCMC discusses a Lindbladian-based quantum thermal MCMC for many-body systems, enabling purified Gibbs sampling and potential verification via swap tests
I was SO wrong about quantum computing. (backreaction​.blogspot​.com). A physicist reflects on quantum computing, cognitive biases, and the limits of near-term quantum advantage
Google Researchers Announce Privacy Preserving Quantum Cash (flyingpenguin​.com). Google Quantum AI research on privacy-preserving anonymous tokens using classical verification and a trusted minting bank
📚 Academic Research
Unclonable Cryptography in Linear Quantum Memory (arxiv:cs). Introduces constructions that reduce unclonable signing-key quantum storage to O(λ) qubits using CPF-folding, hybrid obfuscation, and parallel signing. Crucial for practical unclonable signatures and quantum-resilient authentication
Limiting one-way distillable secret key via privacy testing of extendible states (arxiv:math). Derives efficiently computable upper bounds on one-shot and asymptotic one-way distillable key and forward-assisted private channel capacity via k-extendible privacy tests. Tight, practical security limits—authors include Horodecki and Wilde—impact quantum cryptography analysis
Self-correcting High-speed Opto-electronic Probabilistic Computer (arxiv:cs). Presents a photonic-integrated, FPGA-controlled probabilistic computing prototype achieving 2.7×10^9 flips/s and 4.9 nJ/flip with SDI self-certification and error-correction. Potential game-changer for hardware-accelerated probabilistic optimization and ML
Complexity of counting points on curves and the factor $P_1(T)$ of the zeta function of surfaces (arxiv:math). Places curve point-count certification in AM ∩ coAM and gives poly(log q)-time algorithms for the P1(T) factor of surface zeta functions (fixed degree), with quantum poly-time generalizations. Deep implications for quantum algorithms in arithmetic geometry and complexity theory
Normalized tensor train decomposition (arxiv:math). Defines normalized tensor-train (NTT) decomposition with Riemannian geometry and algorithms for unit-norm tensors, enabling efficient quantum-state-preserving low-rank methods. Valuable for quantum simulation, eigenproblems, and entropy computations on NISQ-era devices