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Across qubit platforms, improving coherence often compromises operational speed. Here, the authors overcome this trade-off by electrically controlling a hole spin qubit in a Ge/Si core/shell nanowire, achieving triple manipulation speeds while quadrupling coherence times.

Two-qubit operations exceeding 99% fidelity have been demonstrated by silicon devices made with standard semiconductor tooling in a 300-mm foundry environment.

Precise and scalable generation of high-quality NV centers is crucial for their integration into quantum devices. Here the authors demonstrate the high-yield controlled fabrication of highly coherent NV centers in prefabricated nanostructures with three-dimensional nanoscale spatial confinement, using a combination of δ-doping and focused electron beam irradiation.

A large-scale study on the replicability of claims from social and behavioural science journals reports that about half of the results replicate in the same patterns as the original study.

Spins confined to quantum dots are a possible qubit, but the mechanism that limits their coherence is unclear. Here, the authors use an all-optical Hahn-echo technique to determine the intrinsic coherence time of such spins set by its interaction with the inhomogeneously strained nuclear bath.

Systems of electron spins in nuclear-spin-rich hosts are gaining attention for quantum memory applications. Using spin ensemble studies, the authors propose transition metal ions in halide double perovskites as promising candidates, featuring long electron spin coherence and deterministic nuclear spin control.

A study of reproducibility in a stratified random sample of 600 papers published from 2009 to 2018 in 62 journals spanning the social and behavioural sciences finds higher reproducibility among more recent papers and papers from journals that require data sharing.

The length of time a qubit can store information is linked to its coherence time. Here, the authors demonstrate that industrially important crystals comprising more than one species can host qubits with unexpectedly long coherence times.

Introgression of the short arm of rye chromosome one into common wheat increases root biomass and drought tolerance, but the underlying genetic basis is unknown. Here, the authors report that dosage differences in 12-OXOPHYTODIENOATE REDUCTASE genes modulate the differences of wheat root architecture.

Conveyor-mode spin shuttling using a two-tone travelling-wave potential demonstrates an order of magnitude better spin coherence than bucket-brigade shuttling, achieving spin shuttling over 10 μm in under 200 ns with 99.5% fidelity in an isotopically purified Si/SiGe heterostructure.

A scalable architecture that is based on a quantum dot crossbar array comprising tightly pitched spin-qubit tiles and implemented in planar germanium, can be used characterize spin qubits.

High sensitivity in quantum sensing comes often at the expense of other figures of merit, usually resulting in distortion. Here, the authors propose a protocol with good sensitivity, readout linearity and high frequency resolution, and benchmark it through signal measurements at audio bands with NV centers.

Natural products populate areas of chemical space not occupied by average synthetic molecules. Here, an analysis of more than 180,000 natural product structures results in a library of 2,000 natural-product-derived fragments, which resemble the properties of the natural products themselves and give access to novel inhibitor chemotypes.

Langstein-Skora, Schmid, Huth et al. propose that intrinsically disordered region functionality can be driven by the interplay between linear binding motifs and contextual chemical characteristics such as charge and hydrophobicity.

Trapped ions are promising for electrometry but limited by their weak intrinsic spin coupling to electric fields. Now it is shown that using a magnetic field gradient enhances sensitivity and enables precise measurements across subhertz to kilohertz frequencies.

Hybrid systems composed of defect centres in diamond and mechanical resonators are promising for studies in quantum information science and optomechanics. Here, the authors show direct coupling of the spin of a nitrogen–vacancy centre to a diamond cantilever through lattice strain.

Quantum dot spin qubits in Si can be controlled using micromagnet-based electric-dipole spin resonance, but experiments have been limited to small 1D arrays. Here the authors address qubit control in 2D Si arrays, demonstrating low-frequency control of qubits in a 2 x 2 array using hopping gates.

Shallow NV centers in diamond are advantageous for quantum sensing but suffer from surface magnetic noise. Using first-principles simulations supported by experiments, the authors show that a combination of small magnetic fields and surface strain can significantly enhance spin coherence of 1 nm-deep NV centers.

Operation sweet spots decouple hole spin qubits in silicon from charge noise while conserving full electrical control and allowing for spin coherence times of up to 88 μs.

Quantum coherence is hard to maintain in solid-state systems, as interactions usually lead to fast dephasing. Exploiting disorder effects and interactions, highly coherent two-level systems have now been realized in a rare-earth insulator compound.

Hole spin semiconductor qubits suffer from charge noise, but now it has been demonstrated that placing them in an appropriately oriented magnetic field can suppress this noise and improve qubit performance.

Silicon-based spin qubits are promising candidates for a scalable quantum computer. Here the authors demonstrate the violation of Bell’s inequality in gate-defined quantum dots in silicon, marking a significant advancement that showcases the maturity of this platform.

An algorithm that combines deep learning, Bayesian optimization and computer vision techniques can be used to autonomously tune a semiconductor spin qubit from a grounded device to Rabi oscillations.

Optical spin defects in semiconductors are crucial for applications, but it is often difficult to establish their microscopic origin. A mechanism for the spin behaviour of a family of bright emitters in hexagonal boron nitride has now been identified.

Current applications of NV centers in diamond as spin-photon interfaces for quantum networks are limited by low coherent photon emission. Here, the authors integrate a coherently controlled NV spin qubit with an open microcavity to achieve Purcell-enhanced emission and demonstrate spin-photon state generation.

The detection and coherent control of single ¹³C nuclear spins in hexagonal boron nitride at room temperature enables the use of van der Waals materials in upcoming quantum technologies.

Despite looking highly irregular, most real-world networks exhibit natural stability to external perturbations. A study of the properties of the stability matrix of networks now sheds light on the principles underlying this emerging stability.

The coherent operation of individual ³¹P electron and nuclear spin qubits in a ²⁸Si substrate shows new benchmark decoherence times and provides essential information on the dechorence mechanism.

Spin qubits in systems with strong spin–orbit coupling can be electrically controlled, but are usually affected by short coherence times. Here, coherence times up to 10 ms are obtained for strain-engineered hole states bound to boron acceptors in silicon 28.

Initialization and operation of spin qubits in silicon above 1 K reach fidelities sufficient for fault-tolerant operations at these temperatures.

Splicing factors shape how genes are stitched into RNA, but their activity is hard to measure. Here, the authors benchmark network methods and show exon-inclusion signatures infer splicing factor activity, uncovering cancer programs linked to survival and hallmarks.

Quantum computing requires fast and selective control of a large number of individual qubits while maintaining coherence, which is hard to achieve concomitantly. All-electrical operation of a hole spin qubit in a Ge/Si nanowire demonstrates the principle of switching from a mode of selective and fast control to idling with increased coherence.

A scalable silicon quantum processor unit cell made of two qubits confined to quantum dots operates at about 1.5 K, achieving 98.6% single-qubit gate fidelities and a 2 μs coherence time.

Isotope engineering of silicon carbide leads to control of nuclear spins associated with single divacancy centres and extended electron spin coherence.

An optically addressable fluorescent-protein spin qubit is realized using enhanced yellow fluorescent protein; the qubit can be coherently controlled at liquid-nitrogen temperatures and the spin detected at room temperature in cells.

Donors spins in silicon are coherent, high-performance qubits, but scale-up has been challenging. Here the authors present the first experimental demonstration of exchange-based, entangling two qubit gates between electrons bound to ³¹P donors in Si.

Crohn’s disease is associated with disturbances in the B-cell compartment and secreted antibodies. Here, the authors reveal impaired colonic dimeric IgA responses in patients with Crohn’s disease and verify this phenotype in murine models, demonstrating that mitochondrial dysfunction drives defective mucosal humoral immunity.

This work challenges the view of nucleation governing halide perovskite grain morphology, showing that most additives act post-nucleation by boosting ion mobility across grain boundaries, triggering grain coarsening, similar to post-processing effects.

A technique to study the noise in quantum systems has been devised by using spectral filters in reverse. So-called dynamical-decoupling pulse sequences, previously used to remove noise, now quantify how a superconducting qubit interacts with its noisy environment.