Search

The authors report resonant soft x-ray scattering and polarimetry measurements on epitaxial thin films of La3Ni2O7. They find a diagonal bicollinear double spin stripe order, with no evidence of charge modulation.

Time-resolved MEG modeling under Xenon anesthesia identifies posterior parietal connectivity and cortical stability as correlates of consciousness, with weaker parietal-occipital and parietal-to-prefrontal links marking reduced responsiveness.

The topographical features of insect wings result in some interesting surface properties, including hydrophobicity and antibacterial activity. Here the authors identify the surface of black silicon as a mimic of dragonfly wings and show that it too possesses antibacterial activity.

A long-period radio transient with coincident radio and X-ray emission and observational properties unlike any known Galactic object has been observed by the Australian Square Kilometre Array Pathfinder.

B cells are thought to divide asymmetrically to generate distinct lineages required for adaptive immunity. Hawkins et al. find that surprisingly, mice lacking components of a complex required for asymmetric cell division display normal responses to vaccination and viral infection.

Observations of optical flares from AT2022tsd (the ‘Tasmanian Devil’) show that they have durations on the timescale of minutes, occur over a period of months, are highly energetic, are probably nonthermal and have supernova luminosities.

The death of massive stars has traditionally been discovered by explosive events in the gamma-ray band. Liu et al. show that the sensitive wide-field monitor on board Einstein Probe can reveal a weak soft-X-ray signal much earlier than gamma rays.

The results obtained by seventy different teams analysing the same functional magnetic resonance imaging dataset show substantial variation, highlighting the influence of analytical choices and the importance of sharing workflows publicly and performing multiple analyses.

Early-time multi-frequency radio observations of the exceptionally bright GRB 221009A show the detailed evolution of a reverse shock formed within the jet that was launched as the result of a stellar explosion.

Two species of Howea palm endemic to the remote Lord Howe Island are sister taxa and diverged from each other well after the island was formed 6.9 million years ago — providing clear support for sympatric speciation.

The use of time-bin entangled qudits is hindered by the phase instability, timing inaccuracy and low scalability of current interferometric schemes. Here, the authors show a fiber-pigtailed photonic chip for generating and processing picosecond-spaced time-bin entangled qudits and utilize the system to implement a quantum key distribution protocol.

Complex-valued neural networks can recognize phase-sensitive data in wave-related phenomena. Here, authors report a complex-valued optical convolution accelerator operating at over 2 TOPS for recognition of radar images, represents advances towards real-time analysis of complex satellite data.

A series of early-time, multiwavelength observations of an optical transient, AT2022cmc, indicate that it is a relativistic jet from a tidal disruption event originating from a supermassive black hole.

Here, the authors investigate the interactions between Fermi polarons in monolayer WS₂ by multi-dimensional coherent spectroscopy, and find that, at low electron doping densities, the dominant interactions are between polaron states that are dressed by the same Fermi sea. They also observe a bipolaron bound state with large binding energy, involving excitons in different valleys cooperatively bound to the same electron.

Antibiotics can cause hospital-acquired diarrhoea, resulting in gut microbiota and metabolome changes. Here, the authors study the faecal microbiota and metabolome of 169 patients, offering insights into these changes, and identified biomarkers for diagnostics.

Slow nonlinearities of a free-running microresonator-filtered fibre laser are shown to transform temporal cavity solitons into the system’s dominant attractor, leading to reliable self-starting oscillation of microcavity-solitons that are naturally robust to perturbations.

By analysing the chemical abundance differences of pairs of co-moving stars born together, it is found that about 8% show chemical signatures that indicate ingestion of planetary material.

Critical slowing (associated with increased variance and autocorrelation) can precede critical state transitions. Here, the authors show critical slowing can be used as a marker in seizure forecasting algorithms.

To prevent ligand-independent dimerisation the epidermal growth factor receptor (EGFR) is autoinhibited by an extracellular dimer interaction. Here, the authors use several imaging technologies and simulations to provide structural insights on the inactive species and on how intracellular mutations circumvent the autoinhibition of the basal state.

Neurodesk is a platform for analyzing human neuroimaging data, which provides numerous tools in a containerized form, thereby ensuring reproducibility and portability.

This Review summarizes the recent progress in ultrahigh-bandwidth optical-fibre communications based on integrated optical frequency comb technologies, or integrated Kerr microcombs, highlighting the challenges and opportunities ahead.

Bacteriophages have a significant impact on microbial ecosystems, but additional tools are needed to assess viral communities. Ogilvie et al.present a new strategy to extract viral sequences from metagenomic data sets, and present new insights on their function in the gut ecosystem.

Observations of local galaxy I Zw 18 imply that the dust mass in star-forming, metal-poor environments is much lower than expected, and, therefore, that the amount of dust in young galaxies of the early Universe, such as redshift-6.6 galaxy Himiko, is probably a factor of about 100 less than previously thought.

An optical vector convolutional accelerator operating at more than ten trillion operations per second is used to create an optical convolutional neural network that can successfully recognize handwritten digit images with 88 per cent accuracy.

Controlling complex properties of optical systems, like the output of nonlinear light sources, is increasingly important for applications. Here, Wetzel et al. use an actively-controlled photonic chip to prepare patterns of femtosecond laser pulses used for tailoring supercontinuum generation.

Microcombs provide many opportunities for integration in optical communications systems. Here, the authors implement a soliton crystal microcomb as a tool to demonstrate more than 44 Tb/s communications with high spectral efficiency.

The accelerations of a pulsar and a white dwarf in a three-star system differ by at most a few parts per million, providing a much improved constraint on the universality of free fall.

A passively mode-locked laser system featuring cavity filtering and cavity-enhanced nonlinear interactions within an integrated microring resonator produces nanosecond optical pulses with a spectral width of 104.9 MHz.

By nesting a Kerr microresonator in a fibre loop with gain, 50-nm-wide bright microcavity-based soliton combs with a mode efficiency of 75% can be induced at average powers more than one order of magnitude lower than the Lugiato–Lefever soliton power threshold, facilitating real-world applications.

The detection and simulation of a type Ia supernova with an early, red flash suggests that it formed through detonation of the helium shell of a white dwarf, rather than by collision of the ejecta with a companion star or by merging with another white dwarf.

As the most common derivative of graphene, graphene oxide has emerged as a new frontier material with tremendous applications to photonics, electronics and optoelectronics in the past decade. This Review highlights the state of the art and future prospects for this fast-growing field.

The on-chip generation of high-dimensional frequency-entangled states and their spectral-domain manipulation are demonstrated, introducing a powerful and practical platform for quantum information processing.

Cavity-solitons in microresonator-filtered fibre lasers are robust states with self-recovery capabilities that emerge when a delicate balance of energy-dependent nonlinearities is achieved. In this work, the authors make use of the dispersive Fourier transform to understand the dynamics leading to a soliton bonded with a quasi-continuous wave.

Generating stable frequency combs with desired features is crucial for enabling applications in diverse fields, such as telecommunications, spectroscopy, and artificial intelligence. In this work, the authors demonstrated an autonomous optimization scheme based on genetic algorithms to tailor coherent microcombs produced by a microring resonator.

Signal processing is key to communications and video image processing for astronomy, medical diagnosis, autonomous driving, big data and AI. Menxi Tan and colleagues report a photonic processor operating at 17Tb/s for ultrafast robotic vision and machine learning.