Interferometers based on matter waves are just the kind of precision tools needed to hone the cutting edge of physics. The de Broglie wavelengths of atoms, for example, are about 10 000 times shorter than those of light, and they offer correspondingly greater sensitivity. Electron and neutron interferometers have been around for some time, but atom interferometers have remained just out of grasp.
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© 1991 American Institute of Physics.
1991
American Institute of Physics
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