Phonons are the quantum units of mechanical vibration. They describe how motion propagates through a solid at the smallest ...

Caltech scientists have developed a new way to produce optical frequency combs—important tools in devices that keep time and ...

Scientists have found a clever way to supercharge ultra-thin semiconductors by reshaping the space beneath them rather than ...

Using two optically trapped glass nanoparticles, researchers observed a novel collective Non-Hermitian and nonlinear dynamic driven by nonreciprocal interactions. This contribution expands traditional ...

The nonlinear susceptibility is a measure of a material's nonlinear response to an applied electric field. It determines the strength of the nonlinear effects and is related to the crystal's symmetry ...

Anyone with a chronic illness understands the struggle of living with a disease that is deeply unpredictable. Many such ...