S wave is the zero angular momentum quantum number , l=0, and will correspond to a classical head on ...

I would like to particularly address this nice question relating the Hamiltonian formulation of this superconducting state (via Bogoliubov-de Gennes (BdG) equation) to the low energy quantum …

2011年4月6日 · Its used in partial wave analysis, a common orthogonal expansion . Any function can be decomposed into infinitely many partial waves, the different partial waves correspond …

2015年2月11日 · Note that the orientation relative to gravity is irrelevant (so horizontal and vertical don't really mean anything unless you're talking about gravity waves) In longitudinal waves the …

That's why we may blame many widespread misconceptions about quantum mechanics on the popularity of the wave mechanics. Today, we usually use the terms "Schrödinger picture" and …

$|\partial_t \dot{\psi}| \ll \omega |\dot{\psi}|$ means that the envelope function's time derivative $\dot{\psi}$ is changing much more slowly than the plane wave is oscillating (i.e. many plane …

2022年10月27日 · Atom cooling involves photons interacting with atoms. These interactions are sometimes called scattering. The system undergoing the scattering has an angular momentum …

Now quantum mechanics is wave mechanics, mathematics is similar but interpretation varies. But particles and waves are two exclusive phenomenon, to join them De broglie's hypothesis was …

The basic idea is to combine various mundane elements (semiconductors, s-wave superconductor, ferromagnet, etc): since electrons have spin-$1/2$, one needs to have …

A wave train simply means a series of more or less equally spaced wave crests. A wave packet generally means a collection of waves with neighboring wavenumbers, which interfere to …