In physics, quantum beats are simple examples of phenomena that cannot be described by semiclassical theory, but can be described by fully quantized calculation, especially quantum electrodynamics. In semiclassical theory (SCT), there is an interference or beat note term for both V-type and -type atoms. However, in the quantum electrodynamic (QED) calculation, V-type atoms have a beat term but -types do not. This is strong evidence in support of quantum electrodynamics.
Read more about Quantum Beats: Historical Overview, V-type and -type Atoms, Calculation Based On Semiclassical Theory, Calculation Based On Quantum Electrodynamics, Conclusion, See Also
Famous quotes containing the words quantum and/or beats:
“A personality is an indefinite quantum of traits which is subject to constant flux, change, and growth from the birth of the individual in the world to his death. A character, on the other hand, is a fixed and definite quantum of traits which, though it may be interpreted with slight differences from age to age and actor to actor, is nevertheless in its essentials forever fixed.”
—Hubert C. Heffner (1901–1985)
“It beats sitting around with my butt in a sling.”
—Antoinette Cancello, U.S. circus aerialist. As quoted in WomenSports magazine, p. 35 (January 1976)