Tunneling is a peculiar quantum phenomenon with no classical counterpart. It plays an essential role for strong field phenomena in atoms and molecules interacting with intense lasers. Processes such as high-order harmonic generation are driven by electron dynamics following tunnel ionization.

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Researchers from the University of Waterloo have achieved a feat previously thought to be impossible—getting a sphere to roll down a totally vertical surface without applying any external force.

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Researchers from the RIKEN Center for Quantum Computing and Huazhong University of Science and Technology have conducted a theoretical analysis demonstrating how a “topological quantum battery”—an innovative device that leverages the topological properties of photonic waveguides and quantum effects of two-level atoms—could be efficiently designed. The work, published in Physical Review Letters, holds promise for […]

Pounding on the bottom of a glass bottle of ketchup is one of life’s small annoyances. Getting that sweet, red concoction from its solid phase to a liquid takes too long when you’re hungry and could even require messy strategies with a butter knife.

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Turbulence in nature refers to the complex, time-dependent, and spatially varying fluctuations that develop in fluids such as water, air, and plasma. It is a universal phenomenon that appears across a vast range of scales and systems—from atmospheric and oceanic currents on Earth, to interstellar gas in stars and galaxies, and even within jet engines […]

Nuclear fusion reactors are highly powerful technologies that can generate energy by fusing (i.e., joining) two light atomic nuclei to form a heavier nucleus. These fusion reactions release large amounts of energy, which can then be converted into electrical power without emitting greenhouse gases.

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Organic light emitting diodes, or OLEDs, are a type of photoluminescence device that utilizes organic compounds to produce light. Compared to traditional LEDs, OLEDs have shown to be more efficient, can be built into super-thin and flexible materials, and have higher dynamic range in image quality. To further develop better OLEDs, researchers around the world […]

As the digital world demands greater data storage and faster access times, magnetic memory technologies have emerged as a promising frontier. However, conventional magnetic memory devices have an inherent limitation: they use electric currents to generate the magnetic fields necessary to reverse their stored magnetization, leading to energy losses in the form of heat.

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