Reciprocal Lattice - Wikipedia - primitive vectors  ## Metadata - Author: **primitive vectors** - Full Title: Reciprocal Lattice - Wikipedia - Category: #articles - URL: https://en.wikipedia.org/wiki/Reciprocal_lattice ## Highlights - In physics, the reciprocal lattice represents the Fourier transform of another lattice (usually a Bravais lattice). In normal usage, the initial lattice (whose transform is represented by the reciprocal lattice) is usually a periodic spatial function in real-space and is also known as the direct lattice. While the direct lattice exists in real-space and is what one would commonly understand as a physical lattice (e.g., a lattice of a crystal), the reciprocal lattice exists in reciprocal space (also known as momentum space or less commonly as K-space, due to the relationship between the Pontryagin duals momentum and position) - Tags: #physic