Optical resonators are essential tools for high precision metrology and applications where the spectral purity is highly demanded. Here, the authors demonstrate a monolithic resonator made of fused silica to support 18 Hz integrated laser linewidth in the ambient environment, and W-band microwave generation with low phase noise of -100 dBc/Hz at 10 kHz frequency offset.

Topological insulators with ordered moments of embedded magnetic atoms are viable platforms for quantum electronics, but the practical applications are restricted by the size of their crystals. The authors synthesize a Z2 topological insulator Ge_xMn_1-xBi₂Te₄ in the form of a large crystal with high structural perfection and tunable magnetic and electronic properties.

Originally developed in the context of ecology, the dimension reduction approach allows to study the dynamics of complex systems at large scale, while retaining the interaction patterns within the system. The framework allows obtaining analytical approximations of the aggregated models. The authors extend the dimension-reduction approach to resource-flow networks. They combine the approximation with flooding maps that consider the effects of climate change to study the resilience of coastal fuel supply chains to sea level rise.

Topological quantum states are essential resources in quantum error correction and quantum simulation but unitary quantum circuits for their preparation require extensive circuit depth. The authors demonstrate a constant-depth protocol to prepare topologically ordered states on a trapped-ion quantum computer using non-unitary operations.

Reactive oxygen species (ROS), such as hydrogen peroxide, play a key role in cellular processes but can cause damage at high concentrations. The authors demonstrate that elevated ROS levels are accompanied by an increased cell stiffness that is explained by cytosolic acidification due to lysosomal degradation and not by alterations in the cytoskeleton.

Particle-based models of soft active matter are known to exhibit large density fluctuations, which may be problematic for considering homogeneous systems. Through considering the coupling of activity to local density, we reduce density fluctuations while retaining active turbulent dynamics.

Materials exhibiting a significant shift current response could potentially outperform conventional solar cell materials. The authors propose a general design principle that exploits inter-orbital mixing to excite virtual multiband transitions in materials with multiple flat bands to achieve an enhanced shift current response.

One of the most considered applications for quantum-inspired algorithms is solving combinatorial optimization problems. In this manuscript, the authors benchmark several quantum-annealing-inspired algorithms against other state-of-the-art optimizers and quantum annealer, comparing their success probabilities and time-to-solution.

Laser-driven X-rays can provide ultrashort pulses of broadband light, well suited for femtosecond timescale absorption spectroscopy. Here the authors measure the extended X-ray absorption features of a copper sample using a laser wakefield accelerator, in a single shot; important for studying samples driven to extreme and non-equilibrium states.

Understanding how cancer cells regulate their size is still largely an open question. The authors propose a method to infer the division strategy of leukemia cells via live cell fluorescence labeling and flow cytometry measurements combined with a mathematical model based on size-dependent growth and division rates.

The bulk-boundary correspondence and the tenfold classification table are important concepts for topological insulators and superconductors as they determine the nature or absence of topological boundary states. Using generalized Su-Schrieffer-Heeger and Kitaev models, the authors demonstrate topological domain-wall states in the classes where topology is thought to be impossible.

Living in groups is a key survival strategy for biological systems, yet its dependency on environmental characteristics is not fully understood. Exploiting active colloids in controlled optical landscapes as a model system, the authors demonstrated that the spatial complexity of the environment determines both the size and stability of these groups.

The rupture of thin liquid films has mostly been studied for supported films, where the substrate creates ambiguity in identifying the processes at film level that lead to rupture. Focusing on spontaneous rupture, the authors portray the complete life-cycle of freely suspended films of pure liquid, corroborating that deterministic hole formation precedes the stochastic spontaneous rupturing of thin films.