Quantum Mechanics
In quantum mechanics, angle brackets are also used as part of Dirac's formalism, bra-ket notation, to note vectors from the dual spaces of the bra and the ket .
In statistical mechanics, angle brackets denote ensemble or time average.
Read more about this topic: Bracket (mathematics)
Famous quotes containing the word quantum:
“But how is one to make a scientist understand that there is something unalterably deranged about differential calculus, quantum theory, or the obscene and so inanely liturgical ordeals of the precession of the equinoxes.”
—Antonin Artaud (1896–1948)