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View Resource NARST 1999: Research on Teaching and Learning Quantum Mechanics

This is a collection of nine papers from a session at the 1999 NARST conference on teaching and learning in quantum mechanics. Topics covered include conceptual understanding of students, computers and visualization, curriculum, and the relations between classical and quantum understanding.

View Resource Quantum Tunneling

This resource illustrates the physics of quantum tunneling in one dimension. Single and double barriers of various shapes can be used. The wavefunction, probability, and energy-dependent transmission coefficient are displayed. The tunneling particles can be electrons, protons, pions, or user defined, and their energy can be changed. The width, height, and spacing of the barriers can be...

View Resource Energy Diagram Explorer

This resource illustrates classical energy diagrams for 1D motion. It simulates an experiment where the energy of a cart with a magnet can be changed by putting magnets along a track. The resultant potential and kinetic energy are shown, along with the motion of the cart. The positions and polarities of the track magnets, and the position, total energy, mass, and friction of the cart can all...

View Resource Diode Laser

This resource, part of the Spectroscopy Lab Suite, illustrates the physics of a semiconductor Diode Laser. Students can create conduction and valence band energy levels and build in a bias due to impurity doping. The basic processes for light emission, including external voltage bias and level transitions are shown. The band energy levels and internal and external bias can all be adjusted to...

View Resource Fluorescence Spectroscopy

This resource, part of the Spectroscopy Lab Suite, simulates optical transitions in a Fluorescent light. In this illustration, the transitions between bands in the phosphor coating of the light are shown. The phosphor is excited by discharge in a mercury gas. The energy levels and transitions in the phosphor material can be changed.

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