
3D wavefunctions
12 Apr 2010   Contributor(s):: Saumitra Raj Mehrotra, Gerhard Klimeck
In quantum mechanics the timeindependent Schrodinger's equation can be solved for eigenfunctions (also called eigenstates or wavefunctions) and corresponding eigenenergies (or energy levels) for a stationary physical system. The wavefunction itself can take on negative and positive values and...

Quantum Dot Lab Demonstration: Pyramidal Qdots
11 Jun 2009   Contributor(s):: Gerhard Klimeck, Benjamin P Haley
This video shows the simulation and analysis of a pyramidshaped quantum dot using Quantum Dot Lab. Several powerful analytic features of this tool are demonstrated.

Quantum Dot Wave Function (Quantum Dot Lab)
02 Feb 2011   Contributor(s):: Gerhard Klimeck, David S. Ebert, Wei Qiao
Electron density of an artificial atom. The animation sequence shows various electronic states in an Indium Arsenide (InAs)/Gallium Arsenide (GaAs) selfassembled quantum dot.

Quantum Dot Wave Function (still image)
31 Jan 2011   Contributor(s):: Gerhard Klimeck, David S. Ebert, Wei Qiao
Electron density of an artificial atom. The image shown displays the excited electron state in an Indium Arsenide (InAs) / Gallium Arsenide (GaAs) selfassembled quantum dot.

Quantumdot Cellular Automata (QCA)  Logic Gates
03 Feb 2006 
An earlier animation described how "Quantumdot Cellular Automata" (QCAs) could serve as memory cells and wires. This animation contnues the story by describing how QCAs can be made into MAJORITY, OR, AND, and INVERTER logic gates.

Quantumdot Cellular Automata (QCA)  Memory Cells
03 Feb 2006 
Scientists and engineers are looking for completely different ways of storing and analyzing information. Quantumdot Cellular Automata are one possible solution. In computers of the future, transistors may be replaced by assemblies of quantum dots called Quantumdot Cellular Automata (QCAs).This...

SelfAssembled Quantum Dot Structure (pyramid)
01 Feb 2011   Contributor(s):: Gerhard Klimeck, Insoo Woo, Muhammad Usman, David S. Ebert
Pyramidal InAs Quantum dot. The quantum dot is 27 atomic monolayers wide at the base and 15 atomic monolayers tall.

SelfAssembled Quantum Dot Wave Structure
31 Jan 2011   Contributor(s):: Gerhard Klimeck, Insoo Woo, Muhammad Usman, David S. Ebert
A 20nm wide and 5nm high dome shaped InAs quantum dot grown on GaAs and embedded in InAlAs is visualized.