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Visualizing Electron Wave Motion Time-Dependent Schrödinger Equation

Visualization of electron motion in quantum nano-devices

We simulate quantum devices by solving the time-dependent Schroedinger equation. We apply our software for a variety of problems. Our simulations can be used for simulating electrons in electron microscopes and for simulating electronic devices using quantum effects. Another area is the simulation of electron wave packets prepared by femto-second laser pulses. Femto-second laser technology is a very rapidly growing area, and it is very difficult to imagine how electron wave packets behave on such a short time scale without high quality simulations. Our software can also be used for a range of other simulation technology applications.

Prize in the Japanese Computer Visualization Contest

This work has been awarded the 2nd Prize in the Japanese Computer Visualization Contest 1995 organized by the Japanese Edition of Scientific American (Nikkei SCIENCE), it has also appeared on the February 1996 page of the Hewlett-Packard Laboratory Calender, and the work has also been presented at a number of scientific conferences and in a number of scientific journals. We have also presented the first simulation of electrons in strong magnetic fields at the 23rd Conference on The Physics of Semiconductors on Berlin (1996).

Slide show:

In the next few slides we show you an electron wave moving through the potential landscape shown in the image below. (Some of the slides include animated gifs which are approximately 600 kbyte in size. These may take a while to download, but most WWW-browsers should start playing the animations while downloading the remaining frames. The animations will play for ever on most browsers, and the second and further runs will much be quicker than the first.)

View the presentation:

Go to slide 1