Utente:Unit/Sandbox: differenze tra le versioni

Versione delle 19:52, 1 feb 2007

Versione delle 00:27, 14 mar 2009

Riga 26:

* ''U'' is [[surjective]] and preserves the [[inner product]] on the Hilbert space, so that for all [[vector]]s ''x'' and ''y'' in the Hilbert space,

:<math>\langle Ux, Uy \rangle = \langle x, y \rangle. t= p \dot x'</math>

[[Unitary matrix|Unitary matrices]] are precisely the unitary operators on finite-dimensional Hilbert spaces, so the notion of a unitary operator is a generalisation of the notion of a unitary matrix.