Chronological feed of everything captured from Ross Duncan.
Researchers have developed a hybrid computing platform integrating the Fugaku supercomputer with a Quantinuum Reimei trapped-ion quantum computer. This platform utilizes the ONIOM framework to model complex biomolecular reactions by accurately treating active sites and their molecular environments. This represents a significant advancement towards scalable and precise simulations of such reactions.
Sequence-to-sequence attention models outperform fully connected neural networks and baseline error mitigation techniques in refining noisy output probability distributions from superconducting QPUs. The approach demonstrates effective cross-dataset generalization and transfer learning between devices of the same architecture, reducing the need for complete model retraining.
The prototype Schwarzschild-Couder Telescope (pSCT) camera has undergone a significant upgrade, expanding its focal plane to 11,328 silicon photomultiplier (SiPM) pixels across 177 modules. The upgraded electronics are designed to mitigate crosstalk and noise. Performance testing of a preproduction module indicates excellent charge resolution and low noise, advancing the pSCT's readiness for observations of very-high-energy gamma-ray sources.
Quantinuum has introduced Helios, a 98-qubit trapped-ion quantum computer utilizing a QCCD architecture. This system achieves high fidelity in single-qubit and two-qubit gates, along with state preparation and measurement. Helios employs 137Ba+ hyperfine qubits, features all-to-all connectivity via a rotatable ion storage ring, and incorporates parallelized operations and real-time compilation for enhanced speed and programmability.
This work introduces a novel quantum type system within the Guppy programming language, aiming to integrate ergonomic linear typing with imperative semantics. The core objective is to ensure safety guarantees in imperative quantum programming, an area where linear types have not seen widespread adoption. All proposed concepts have been implemented in Quantinuum's Guppy.