there is a lead connected. No outgoing density is reflected within the leads,
 but some minor reflection will occur on the corners of the box.
 This is due to the setup of semi-infinite finite width leads connected to the sides.
 Warning: This scheme works only with the special Cranck-Nicholson propagator and has
 quadratic scaling with time. It may be tuned with the parameter <tt>OpenBoundariesMaxMemCoeffs</tt>.
</li>
</ul>
</p><hr width='30%' align='left'/>

<a name='Time-Dependent::Open Boundaries'</a>
<