In a pioneering study, researchers have successfully realized valley vortex states in water wave crystals, drawing parallels with phenomena observed in photonic crystals. This achievement advances the understanding of valley states in the classical wave domain and opens new avenues for potential applications in ocean energy extraction, marine engineering, and the development of coastal infrastructures.

Researchers from Science Tokyo have contributed to an international collaboration that recently published a perspective article in the prestigious journal Nature Physics. The team, led by Professor Ginestra Bianconi of Queen Mary University (UK), addressed the most recent developments and challenges in complex systems from the angle of higher-order networks, with applications ranging from climate science to machine learning.

A groundbreaking study led by Professor Ginestra Bianconi from Queen Mary University of London, in collaboration with international researchers, has unveiled a transformative framework for understanding complex systems. Published in Nature Physics, this pioneering study establishes the new field of higher-order topological dynamics, revealing how the hidden geometry of networks shapes everything from brain activity to the climate and artificial intelligence (AI). 

Eddies are large, rotating currents that contribute to ocean mixing and transport of heat and salt in seawater. Importantly, eddies modify ocean circulation and can influence climate variability by interacting with larger, more dominant ocean currents, or mean flow. A research team recently decomposed the eddy-mean kinetic energy exchange into three parts, all of which are important for eddy-mean energy exchange, and linked them with parameters for eddy geometry through a geometric diagnosis.