Since its development 100 years ago, quantum mechanics has revolutionized our understanding of nature, revealing a bizarre ...

Inhomogeneous waves behave locally like A(r) exp[ikS(r)], where A and S are spatially dependent complex amplitude and phase functions, and k is the (large) free-space wavenumber. A previously ...

New architecture could be used to create tailored devices that emit or receive only certain frequencies of sound ...

Quantum mechanics describes the unconventional properties of subatomic particles, like their ability to exist in a ...