  Consider a quantum dot coupled to two semi-infinite one-dimensional leads at
thermal equilibrium. We turn on adiabatically a bias between the leads such
that there exists exactly one discrete eigenvalue both at the beginning and at
the end of the switching procedure. It is shown that the expectation on the
final bound state strongly depends on the history of the switching procedure.
On the contrary, the contribution to the final steady-state corresponding to
the continuous spectrum has no memory, and only depends on the initial and
final values of the bias.
