Skip to content

Instantly share code, notes, and snippets.

What would you like to do?
def transform_state_vector(rho, U):
N = len(U)
if rho.shape[-1] == N:
# rho is in Hilbert space
elif rho.shape[-1] == N ** 2:
# rho is in Liouville space
U = np.kron(U, U)
raise ValueError('basis transformation incompatible with '
'operator dimensions')
return np.einsum('ij,...j->...i', U.T.conj(), rho)
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.