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Three-dimensional nanofabrication allows for the precise tailoring of curvature of magnetic nanowires, and therefore the local symmetry breaking. Here, Ruiz-Gomez et al use this control to study the interaction of domain walls with local curvature, engineering potential wells and shift registers.

Here, the authors show the emergence of valley-polarized Floquet-Bloch states in 2H-WSe₂ upon below-band-gap driving using circularly polarized light.

Photonic crystals (PhCs) are artificial periodic materials that can be used to manipulate the flow of light. Here, the authors report the realization of asymmetric PhCs based on in-plane hyperbolic phonon polaritons in perforated α-MoO₃, showing low-symmetry deep-subwavelength Bloch modes that are robust against lattice rearrangement in specific directions.

The Bloch–Siegert shift—a strong-field phenomenon that implies a failure of the rotating-wave approximation—is observed in the polariton dispersion diagram of a two-dimensional electron gas system inside a high-Q terahertz photonic crystal cavity.

The build-up and dephasing of Floquet-–Bloch bands is visualized in both subcycle band-structure videography and quantum theory, revealing the interplay of strong-field intraband and interband excitations in a non-equilibrium Floquet picture.

Floquet engineering is often limited by weak light–matter coupling and heating. Now it is shown that exciton-driven fields in monolayer semiconductors produce stronger, longer-lived Floquet effects and reveal hybridization linked to excitonic phases.

How white matter develops along the length of major tracts in humans remains unknown. Here, the authors identify fundamental patterns of human white matter development along distinct axes that reflect brain organization.

Antiskyrmions are topological spin textures with negative vorticity. Like skyrmions, they have considerable technological promise, but have only been stabilised in Heusler compounds. Here, Heigl et al. succeed in stabilising first and second order antiskyrmions in a new class of materials.

Quantum error correction codes protect quantum information, but running algorithms also requires the ability to perform gates on logical qubits. A lattice surgery scheme for fault-tolerant gates has now been demonstrated in a quantum repetition code.

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

So-called photonic-crystal-excitonic-lattice polaritons can be observed by coupling excitons and Bloch waves in a periodic arrangement of GaAs/AlGaAs quantum wells. The effect can be tuned by using an electric field. These hybrid states may allow slow-light-enhanced nonlinear effects and enable observation of macroscopic coherence phenomena in solid-state systems.

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.

Many material properties are governed by the internal dislocation network within the material. Here, the authors describe a method to determine the three dimensional position and type of dislocations from a measurement along only a single direction within a scanning transmission electron microscope.

Phosphocreatine plays a vital role in cellular energetic homeostasis, but there are no routine diagnostic tests to noninvasively map the distribution with clinically relevant spatial resolution. Here, the authors develop and validate a noninvasive approach for quantifying and imaging phosphocreatine, without contrast agents, on widely available clinical MRI scanners with artificial neural networks.

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.

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.

Quantum teleportation moves the quantum state of a system between physical locations without losing its coherence, an essential criterion for emerging quantum information applications. Now, electron-spin-state teleportation in covalent organic electron donor–acceptor–stable radical molecules is demonstrated using entangled electron spins produced by photo-induced electron transfer.

Strong light-matter interaction provides opportunities for engineering electronic symmetry on an ultrafast timescale by forming photon-dressed states called Floquet-Bloch states. Here, the authors observe parity manipulation of Floquet-Bloch states by light fields in a model semiconductor - black phosphorus.

Long-distance quantum communication relies on interfacing qubits with telecom-band photons. Here the authors implement a solid-state spin-qubit based on a hole confined in a semiconductor quantum dot emitting photons in the telecom C-band.

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.

The strong interaction of coherent free electrons with a photonic-crystal cavity enables the measurement of the lifetimes of the cavity modes and provides a technique for multidimensional near-field imaging and spectroscopy.

Control over magnetic skyrmions at room temperature has important applications in technology. Now the observation of skyrmions with high topological charge widens the potential for them to be used in unconventional computing techniques.

A frequency detuning between two pump lasers enables an exciton–polariton Floquet optical lattice and a polariton ‘conveyor belt’. The findings pave the way for Floquet engineering in polariton condensates.

Understanding the mechanisms underlying the survival of drug tolerant persister cells following chemotherapy remains elusive. Here, multi-omics analysis and experimental approaches show that the germ-cell-specific H3K4 methyltransferase PRDM9 promotes metabolic rewiring in glioblastoma stem cells.

Although higher harmonic generation from solids has become of interest in many fields, its observation is typically limited to crystalline solids. Here, the authors demonstrate that higher harmonics can be generated from amorphous solids.

The Haldane model, which predicts complex topological states of matter, has been implemented by placing ultracold atoms in a tunable optical lattice that was deformed and shaken.

High-harmonic generation has so far been driven only by classical light. Now, its driving by a bright squeezed vacuum—a quantum state of light—has been observed and shown to be more efficient than using classical light.

Thouless introduced the idea of a topological charge pump: the quantized motion of charge due to the slow cyclic variation of a periodic potential. This topologically protected transport has now been realized with ultracold bosonic atoms.

Coherent noise affecting a random error correcting code is now shown to produce a transition between phases that accumulate and destroy magic.

Reconfigurable arrays of up to 448 neutral atoms are used to implement and combine the key elements of a universal, fault-tolerant quantum processing architecture and experimentally explore their underlying working mechanisms.

A fault-tolerant, universal set of single- and two-qubit quantum gates is demonstrated between two instances of the seven-qubit colour code in a trapped-ion quantum computer.

Topological antiferromagnetic spin textures, including merons, antimerons, and bimerons, are demonstrated in synthetic antiferromagnets by three-dimensional vector imaging of the Néel order parameter and investigated by micromagnetic analysis.

Bringing atom-interferometric quantum sensors out of the lab requires the mitigation of several sources of noise. Here, the authors experimentally demonstrate a software-based mitigation method based on tailored error-robust Bragg light-pulse beamsplitters and mirrors.

An analog quantum simulation scheme has been explored with a quantum hardware based on a superconducting circuit. Here the authors investigate the time evolution of the quantum Rabi model at ultra-strong coupling conditions, which is synthesized by slowing down the system dynamics in an effective frame.

High-resolution scanning tunnelling microscopy is used to observe the quantum textures of the many-body wavefunctions of the correlated insulating, pseudogap and superconducting phases in magic-angle graphene.

The feasibility of Floquet engineering in graphene has been called into question due to its fast decoherence processes. Measurements of graphene’s photoemission spectrum now support the generation of Floquet states in this material.

Non-trivial Peierls phases that depend on the site occupations for ultracold fermions in an optical lattice have been engineered in a Floquet approach, providing a fundamental ingredient for a density-dependent gauge field acting on ultracold matter.

The mechanisms responsible for the strongly correlated insulating and superconducting phases in twisted bilayer graphene are still debated. The authors provide a theory for phonon-dominated transport that explains several experimental observations, and contrast it with the Planckian dissipation mechanism.

Strong nonlinearities, like high harmonic generation in optical systems, can lead to interesting applications in photonics. Here the authors fabricate a thin resonant gallium phosphide metasurface capable of avoiding the laser-induced damage and demonstrate efficient even and odd high harmonic generation from it when driven by mid-infrared laser pulses.

Donor spin impurities in silicon are promising qubit candidates, but efficient control and coupling of distant spins remains a key challenge. In this work, the authors experimentally demonstrate coherent coupling between a superconducting flux qubit and individual bismuth donor spins in silicon.

Individually addressable ‘T centre’ photon-spin qubits are integrated in silicon photonic structures and their spin-dependent telecommunications-band optical transitions characterized, creating opportunities to construct silicon-integrated, telecommunications-band quantum information networks.

Spin–orbit coupling gives rise to a plethora of rich phenomena in many condensed matter and atomic systems. Syzranov et al.study the role of dipole–dipole interactions in ultracold polar molecule gases and show that they produce an effective spin–orbit coupling that generates chiral excitations.

Photonic Landau levels are demonstrated via a strain-induced pseudomagnetic field in a silicon photonic crystal slab.

Laser-assisted tunnelling allows quantum gases in optical lattices to be exposed to tunable artificial magnetic fields. Using such fields to confine a bosonic gas to an array of one-dimensional ladders, a low-dimensional equivalent of the Meissner effect has been observed.

In silicon, quantum information can be stored in donors or quantum dots, each with its advantages and limitations—particularly in terms of fabrication. Here the authors coherently couple a phosphorous donor’s electron spin to a quantum dot, encoding information in the hybrid two-electron system’s state.

Metamaterials enable the realization of unique material properties such as coupling between strain and momentum in a fluid—known as Willis coupling. Here, Muhlesteinet al. use homogenization theory to better understand Willis coupling in acoustic metamaterials and demonstrate the unusual material response.