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Superradiance is usually driven by light-mediated couplings, leaving the role of direct emitter interactions unclear. Now, it is shown that dipole–dipole interactions in diamond spins drive self-induced pulsed and continuous superradiant masing.

Using a wafer-scale monolayer 2D MoS₂ process instead of conventional silicon-based devices to manufacture components of spaceborne communication systems demonstrates radiation tolerance, low bit error rate and long-term stability, even under much harsher radiation environments.

Artificial gauge fields offer a powerful tool for engineering the topological phase of matter. Here, the authors propose a scheme to simulate an SL\((2,{\mathbb{C}})\) non-Abelian gauge field by coupled photonic molecules in synthetic space-frequency dimensions, which enables various Dirac semimetal transitions.

Moiré structures often exhibit long-range order. Here, the authors use scanning tunneling microscopy to identify an incommensurate moiré structure with a short-range-ordered charge density modulation.

It is difficult to control the geometric phase of particles as they undergo quantum tunnelling. Now tuning of the geometric phase of electron spin is demonstrated in tunnelling in a multilayer van der Waals antiferromagnet.

The authors experimentally realize the control of the topological charge of magnetic skyrmionic structures at room temperature in a Dzyaloshinskii-Moriya interaction (DMI) platform with spatially alternating signs. By modifying the DMI energy landscape through chemisorbed oxygen, a magnetic topological transition is realized.

Diamond quantum magnetometry is utilized to directly read the vorticity of antiferromagnetic spin textures through coupled multi-polar emergent magnetic charge distributions.

A fundamental superconducting qubit is introduced: ‘blochnium’ is dual to the transmon, relies on a circuit element called hyperinductance, and its fundamental physical variable is the quasicharge of the Josephson junction.

The all-optical control of magnetization at room temperature expands the potential of spin-based technologies in data storage and quantum computing. Here, the authors use femtosecond optical pulses to manipulate skyrmion states in Fe₃Sn₂ without external magnetic fields, revealing light-induced switching and interconversion processes, with implications for advanced spintronic applications.

In three dimensions, it is possible to have more complicated spin textures, one such example is a hybrid chiral skyrmion tube, where each end of the tube has skyrmions of opposite chirality. Here, Dohi, Bhukta, Kammerbauer and coauthors find that these skyrmion tubes exhibit a non-reciprocal skyrmion Hall effect.

This study demonstrates a low-energy photon device based on the kagome metal RbV₃Sb₅. It demonstrates that Fermi surface reconstruction, driven by a phase transition, leads to the emergence of van Hove singularities near the Fermi level.

Spin-orbit couplings enable the electrical manipulation of spin degrees of freedom and so have a central role in spintronic devices. Here, the authors identify an unconventional spin-orbit effect in high-symmetry situations that leads to a linear magnetoelectric coupling in reciprocal space.

Electrical current pulses enable reversible creation, deletion, and topological transformation of individual antiskyrmions in nanostructures at room temperature, advancing antiskyrmion-based spintronic devices.

Chiral topological materials have been predicted to host orbital angular momentum monopoles, which can be useful for orbitronics applications. Now such monopoles have been imaged in chiral materials.

The precision of determining the phase of an optical atomic clock is increased above the standard quantum limit in a new spectroscopic method.

Although magnetic tomography has been used in the past to determine the 3D magnetization of materials its application to thin films remains challenging. Here the authors reconstruct the magnetization of a thin film, enabling the measurement of topological charges of magnetic singularities.

Non-Hermitian systems offer unique capabilities for manipulating light. Here, authors demonstrate non-reciprocal frequency conversion through non-Hermitian and nonlinear coupling, enabling high-efficiency photonic devices and exploration of non-Hermitian topology.

Fermionic currents of opposing chirality can be spatially filtered without the need for a magnetic field using the quantum geometry of topological bands in single-crystal PdGa.

Dynamic localization is a method of confining light. Here the authors demonstrate higher-order dynamic localization of photons in a synthetic temporal mesh lattice and discuss the idea of tunable temporal cloaking by combining different-order localizations.

Spin–orbit coupling is implemented in an optical lattice clock using a narrow optical transition in fermionic 87Sr atoms, thus mitigating the heating problems of previous experiments with alkali atoms and offering new prospects for future investigations.

Transition metal dichalcogenides offer a platform to study light-matter interaction in atomically thin semiconductors. Here, the authors perform ab initiocalculations to illustrate the possibility of optical control of chiral edge modes, outlining a strategy to manipulate topological states.

The reported network of connectivity between atomic ensembles is entirely programmable and independent of its geometrical arrangement, because of the interaction with an optical cavity.

Charge transport is usually limited by collisions between the carriers, impurities and/or phonons. Collisions involving three bodies are generally much rarer. A study now reveals, however, that such supercollisions can play an important role in the properties of graphene.

Skyrmions and anti-skyrmions are magnetic textures that have garnered much interest due to their stability. Here, Jena et al demonstrate the existence of fractional spin textures at the edges of Heusler alloy sample, which can have continuous variable topological charges.

Experiments that directly probe the quantum geometric tensor in solids have not been reported. Now, the quantum metric and spin Berry curvature—dual components of the quantum geometric tensor—have been simultaneously measured in reciprocal space.

Weyl points, point degeneracies surrounded by linear dispersions, are the 3-dimensional analogue of the Dirac points known from 2D materials. Here, Linet al. propose a scheme for realizing on-chip electromagnetic Weyl points by utilizing the concept of synthetic dimensions.

The spin texture of a magnetic system can host a variety of topological spin textures, the most famous of these being skyrmions. Here, Volkov et al demonstrate higher order vorticity in magnetic wireframe nanostructures and introduce a general protocol for the creation of arbitrary numbers of vortices and antivortices in such wireframe structures.

Atomic defects in semiconductors, like nitrogen-vacancy centres in diamond, are promising as solid state systems for quantum computing. Here, the authors show the complete quantum control of an exciton qubit formed from an isoelectronic centre in GaAs, establishing this material as a promising alternative.

Quantum discord is the total non-classical correlation between two systems. This includes, but is not limited to, entanglement. Photonic experiments now demonstrate that separable states with non-zero quantum discord are a useful resource for quantum information processing and can even outperform entangled states.

The optical trapping of ultracold atoms allows for the simulation and controlled exploration of phenomena normally found in condensed matter systems. Here, the authors demonstrate spin–orbit coupling between lattice band pseudospins in a Bose-Einstein condensate of ultracold atoms.

The Greenland shark, the longest-living vertebrate, inhabits the dim, frigid depths of the Arctic Ocean. Despite its extreme lifespan, this study finds that its vision remains intact and well-adapted for life in dim light, revealing remarkable preservation of sensory function across centuries.

Real-time adaptive control of a qubit has been demonstrated but limited to single-axis Hamiltonian estimation. Here the authors implement two-axis control of a singlet-triplet spin qubit with two fluctuating Hamiltonian parameters, resulting in improved quality of coherent oscillations.

Superconducting transmon qubits are limited by a tradeoff between anharmonicity and charge-noise sensitivity. Here, the authors show how highly transparent Josephson junctions in hybrid superconducting-semiconducting heterostructures can remove this tradeoff and achieve both benefits.

The authors use topoelectrical circuit to demonstrate “scale-tailored localization”. Unlike Anderson localization, the number and length of localized modes is caused by long-range asymmetric coupling. This effect provides a powerful knob to control wave localization and a practical platform for exploring intriguing non-Hermitian effects.

Hole-spin qubits based on semiconductor quantum dots offer potential advantages over their electron-spin counterparts, such as fast qubit control and enhanced coherence times. Liles et al. report a hole-based singlet-triplet spin qubit in planar Si MOS device and develop a model to describe its dynamics.

Hyperbolic lattices in non-Euclidean space challenge conventional band theory due to the breakdown of Bloch’s theorem. The authors develop a reciprocal-space supercell method to determine non-Hermitian spectra under periodic and open boundaries, revealing higher-dimensional skin effects and topological transitions enabled by non-Abelian translations.

Topological properties of a photonic environment are crucial to engineer robust photon-mediated interactions between quantum emitters. Here, the authors find general theorems on the topology of photon-mediated interactions, unveiling the phenomena of topological preservation and reversal.

Topological materials are characterized by the topological invariants of filled bands, which cannot be used for bosonic systems. Instead, their topological invariants can be found via the transition from bound to leaky modes in photonic lattices.

The interplay between dark and bright excitons has a significant impact on the optical properties of semiconducting transition metal dichalcogenides. Here, the authors perform computational and experimental studies which unveil the microscopic origin of the excitonic coherence lifetime in WS₂ and MoSe₂.

Negative refraction of light has been achieved in metamaterials, but non-radiative losses and fabrication imperfections still limit its applications. Here, the authors demonstrate negative refraction of light in atomic arrays enabled by cooperative atom responses, eliminating the need for metamaterials.

A globally chiral atomic superfluid is induced by time-reversal symmetry breaking in an optical lattice and exhibits global angular momentum, which is expected to lead to topological excitations and the demonstration of a topological superfluid.

Weyl semimetals have interesting band-structure features that lead to unique properties. Here, the authors observe and study high-harmonic generation in type-II Weyl semimetal β-WP2 crystals.

Holographic vector-field electron tomography reveals the three-dimensional magnetic texture of Bloch skyrmion tubes in FeGe at nanometre resolution, including complex three-dimensional modulations and fundamental skyrmion formation principles.

3D moiré lattices can exhibit distinct incommensurate phases depending on twist angles. Here, authors demonstrate phase-controlled emergence of fully localized, line-localized, and plane-localized states, enabling tunable 3D transport in cold atom and optical systems.

Broken and tailored symmetries have a fundamental role in wave phenomena and their applications. This Review surveys the recent progress in the domain of artificial phononic media with an emphasis on the role of symmetry breaking, in both space and time, for advanced wave phenomena.

Phase vortices and skyrmions manifest as rotational entities in condensates, superfluids, and optics, typically revealed by the analysis of the Berry curvature. Via two-component microcavity polaritons, the authors imprint a dynamical pseudospin texture to the emitted light, generating a continuous vortex with two ultrafast spiraling cores.

This study proposes a dual-modulation method for optical lattice clocks that synchronously modulates the lattice laser and probing laser to control atomic motion and light-atom interactions independently. The authors derive theoretically and verify experimentally the laws of micromotion shift, and achieving its effective suppression by optimizing modulation parameters.