Quantum Computing
Israel puts NIS 100M ($33M) behind a national quantum R&D infrastructure
The Israel Innovation Authority announced a NIS 100 million (about $33M USD) call for proposals to establish a centralized national quantum computing research-and-development infrastructure. Designed to serve both domestic industry and academic institutions, the initiative is intended to become Israel's primary national hub for evaluating, integrating, and adopting advanced quantum computing systems. It is the latest in a run of state-scale quantum funding programs across the US, EU and Middle East.
Quantum Computing
Programming low-depth NISQ circuits costs Theta(N polylog N) — and gate-wise is optimal
A paper in Quantum quantifies the 'program cost' — the circuit complexity and quantum-memory size — needed to send low-depth brickwork circuits to a programmable (cloud) quantum computer as the qubit count N grows. It proves a tight worst-case bound of Theta(N polylog N) for universal programming in the large-N regime and, via a light-cone argument on the trade-off between describing gate layout and programming the gates themselves, shows that faithful gate-wise programming is essentially optimal in the low-depth setting. Existing generic-unitary programming schemes are shown to be inefficient there.
Optimal schedules for multi-channel quantum Zeno dragging, applied to k-SAT
A Quantum journal paper deepens the theory of multi-channel quantum Zeno dragging, which prepares common eigenstates of a set of observables by frequent generalized measurement plus adiabatic-like modulation of the measurement basis. Focusing on a measurement-driven approach to k-SAT, the authors derive analytical upper bounds on convergence time (including the effect of finite measurement time resolution) and apply optimal control theory to obtain dragging schedules that lower-bound convergence time in low-dimensional settings, providing a design guide for measurement-driven quantum algorithms.
Interlune claims 99%-pure helium-3 from domestic helium via new cryogenic process
Space-resources company Interlune announced (press release) that its 'Cold Capture' cryogenic technology has demonstrated production of 99% pure helium-3 from Grade A helium, an isotope strategically important to quantum computing (dilution-refrigerator cooling) and neutron detection. The company projects that broad deployment could triple current US supply. Treat as a vendor claim: the 99% purity figure is presented as demonstrated, but the supply-tripling and deployment claims are uncorroborated projections.
Maybell Quantum joins New Mexico's $450M quantum push at the Roadrunner lab
Colorado-based Maybell Quantum announced (press release) it will establish operations at the Roadrunner Quantum Lab, part of New Mexico's $450 million state quantum initiative, becoming the third company to base there. The expansion brings local hires and a fleet of advanced cryogenic (near-absolute-zero) systems. A routine facility-expansion announcement, notable mainly as another data point in state-level quantum industrial policy.