Welcome to the Quantum News Daily Brief. Story 1: Spin singlets are useful. A team led by Silas Hoffman and Charles Tahan demonstrated that the spin-zero manifold of an exchange-coupled spin array in semiconducting quantum dots can unlock a Hilbert space of dimension approximately 2^N/(N/2)^(3/2), nearly matching the full 2^N spin space. Using exchange-only control, they showed this approach surpasses traditional modular encoding, which restricts arrays to a Hilbert space of 2^(N/n). The study g

Welcome to the Quantum News Daily Brief. Story 1: Lean-Quantum: Toward AI-Assisted Formalization of Quantum Information. A team led by Kazumi Kasaura has developed Lean-Quantum, a Lean 4 library that formalizes quantum information theory, enabling machine-checkable proofs. The library establishes a basis-independent framework for finite-dimensional quantum mechanics, compatible with Mathlib, and includes interfaces for states, channels, tensor products, and key representations like Choi and Krau

Welcome to the Quantum News Daily Brief. Story 1: COMET: Combinatorial Optimization for Multiplex Editing Targets Via Constraint-Preserving QAOA. A team led by Priyansh Singhal, Sumit Maheshwari, and Piyush Joshi introduced COMET, a method comparing constraint-enforcement strategies for multiplex CRISPR-Cas9 gene editing using QAOA. Their study targets immune-checkpoint genes PDCD1, LAG3, and HAVCR2 on a twelve-qubit system. In simulations, the XY-mixer approach achieved over 95% probability of

Welcome to the Quantum News Daily Brief. Story 1: Shanghai Jiao Tong University: Researchers Improve Quantum State Fidelity Estimation with Faster Protocol. Qisheng Wang, from Shanghai Jiao Tong University, and colleagues have achieved a key advancement in estimating the fidelity of an unknown quantum state to a known reference state. The new method achieves a sample complexity of O(r2/varepsilon2) with optimal dependence on the error $\varepsilon$ for a reference state of rank $r$. This improve

Welcome to the Quantum News Daily Brief. Story 1: Peking University Team Develops Bias-Corrected Moment Estimator for Quantum Metrology. Shaowei Du of the Peking University and colleagues from Shenzhen Technology University, INO-CNR, and Shanxi University have made a key advance in quantum metrology by constructing a bias-corrected estimator with bias scaling as O(1/ν³), where ν represents the number of measurements. This allows determination of how many measurements are needed to operationally

Welcome to the Quantum News Daily Brief. Story 1: Is Honeywell Stock a Buy After Its Latest Structural Shakeup?. On June 29, Honeywell completed its multistage portfolio transformation into three independent companies: Honeywell Technologies (HON +3.71%), Honeywell Aerospace (HONA +8.74%), and Solstice Advanced Materials (SOLS 3.33%). Solstice Advanced Materials, which makes refrigerants and other products, spun off last October. The latest spinoff gives Honeywell investors one Honeywell Aerospa

Welcome to the Quantum News Daily Brief. Story 1: Integrated Photon-Memory Entanglement Generation using Dual Photonic Resonators. --> Quantum Physics arXiv:2607.01324 (quant-ph) [Submitted on 1 Jul 2026] Title:Integrated Photon-Memory Entanglement Generation using Dual Photonic Resonators Authors:Alexander Kolar, Ian Chin, Conner Fong, Daniil M. Lukin, Melissa A. Guidry, Milan Palei, Jelena Vučković, Tian Zhong View a PDF of the paper titled Integrated Photon-Memory Entanglement Generation usin

Welcome to the Quantum News Daily Brief. Story 1: Superconducting Spiral Inductors for RF Reflectometry: Operation at Elevated Temperatures and Magnetic Fields. --> Quantum Physics arXiv:2607.00172 (quant-ph) [Submitted on 30 Jun 2026] Title:Superconducting Spiral Inductors for RF Reflectometry: Operation at Elevated Temperatures and Magnetic Fields Authors:Euan Parry, Murat Cubukcu, Patrick Reuvekamp, Manoj Stanley, Jonathan D. Fletcher, Alessandro Rossi View a PDF of the paper titled Supercond

Welcome to the Quantum News Daily Brief. Story 1: QICK quantum control platform: Why your lab needs it. The Quantum Instrumentation Control Kit known as QICK, is an RF control and readout system developed by engineers at Fermilab in collaboration with university research groups and industry partners, with the firmware, software, and hardware fully open source. The post QICK quantum control platform: Why your lab needs it appeared first on News. Story 2: American Physical Society: MPS Solver Cuts

Welcome to the Quantum News Daily Brief. Story 1: Dissipative Effects in Transmission Line Analogues of Hawking Radiation. --> Quantum Physics arXiv:2606.28505 (quant-ph) [Submitted on 26 Jun 2026] Title:Dissipative Effects in Transmission Line Analogues of Hawking Radiation Authors:Elián Urtubey, Fernando C. Lombardo, Paula I. Villar View a PDF of the paper titled Dissipative Effects in Transmission Line Analogues of Hawking Radiation, by Eli\'an Urtubey and 2 other authors View PDF HTML (exper