Please see equation 31 in the latest transiesta paper: http://www.sciencedirect.com/science/article/pii/S001046551630306X
That should also highlight why the power may become negative. 2017-06-24 11:25 GMT+02:00 Zara Nosh <z.nr...@gmail.com>: > Dear all > I have done the tbtran calculation using transiesta4-1 for non-equilibrium > situations (V=/ 0) . At the end of the output, after reporting the I > (intensity) vs voltage, it also gives another quantity, named P [W], vs > voltage. > > My question is that what is this quantity? > I thought maybe it was Power (Watt), but it also has negative values. > Thanks in advance for your help. > > Zara > > -- Kind regards Nick
