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4434Applets for quantum mechanics
http://www.merlot.org/merlot/viewMaterial.htm?id=74994
This set of applets features illustrations of quantum mechanics through interactive animations in the following domains : Young interference fringes - wavepacket propagation - linear superposition of eigenstates (including coherent states of the harmonic oscillator) - nuclear magnetic resonance.Propagation of a Wavepacket
http://www.merlot.org/merlot/viewMaterial.htm?id=89050
This simulation shows the spreading of a wavepacket, a phenomenon which is a direct consequence of the Heisenberg incertainty principle : If the wavepacket is well localized in configuration space, it must have a large width in momentum space. The parts of the wavepacket corresponding to a larger momentum will propagate faster, hence the spreading.Quantum Physics Online: Wave/Particle Duality
http://www.merlot.org/merlot/viewMaterial.htm?id=88896
The animation above shows a simulation of the Young-slit experiment, performed with either photons, atoms or electrons. In this experiment, the rate is low enough so that you can observe the particle impacts one by one. You can change the number of Young fringes as well as the particle rate.Steps and Barriers in One Dimension
http://www.merlot.org/merlot/viewMaterial.htm?id=90717
The above animation shows the propagation of a gaussian wavepacket through a step or a barrier. The parameters are those of an electron in GaAs. The initial kinetic energy is 0.2 eV while the potential height can be varied.Classical Physics Online
http://www.merlot.org/merlot/viewMaterial.htm?id=83846
Set of java applets for illustrating classical physics (highschool level), including gravitation, electric and magnetic fields, mechanical and electrical oscillatiors, diffraction and interferences. The user can use a large number of simulators (solar system, electrical circuits, oscilloscope, optical setups, etc.) in order to perform numerical experiments and check the validity of different laws of physics.Quantization in One Dimension
http://www.merlot.org/merlot/viewMaterial.htm?id=89390
A series of applets demonstrating the effect of various potential energy functions on the wave functions of particles. Topics include constant potentials, step potentials, potential wells, double wells, and supercomposition and decomposition of Hermite functions.Quantization in Three Dimensions
http://www.merlot.org/merlot/viewMaterial.htm?id=89394
A series of applets on basic quantum physics. Topics include: Spherical harmonics and Carbon 60.Quantum Superposition in One Dimension
http://www.merlot.org/merlot/viewMaterial.htm?id=89391
A series of applets on basic quantum physics. Topics include stationary states, superposition of states, and NH3 and harmonic oscillators.Quantum Superposition in Two Dimensions
http://www.merlot.org/merlot/viewMaterial.htm?id=89393
A series of applets on basic quantum physics, covering topics: two-dimension quantum box, two-dimensional harmonic oscillator, Gaussian wavepacket in a 2D harmonic oscillator, linear superposition in a 2D box, and wavepacket in a box.Scanning Tunneling Microscope
http://www.merlot.org/merlot/viewMaterial.htm?id=89389
An applet that demonstrates the operation of an STM.