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Perturbation theory - Wikipedia, the free encyclopedia (2290 words) |
 | Perturbation theory has its roots in 17th century celestial mechanics, where the theory of epicycles was used to make small corrections to the predicted paths of planets. |
| Perturbation theory saw a particularly dramatic expansion and evolution with the arrival of quantum mechanics. |
| Although perturbation theory was used in the semi-classical theory of the Bohr atom, the calculations were monstrously complicated, and subject to somewhat ambiguous interpretation. |
| perturbation: Definition, Synonyms and Much More from Answers.com (1656 words) |
| The perturbing potential is then considered as causing transitions from the original state to other states of the unperturbed hamiltonian, and application of time-dependent perturbation theory provides the probability of such transitions. |
| Perturbation is a term used in astronomy to describe alterations to an object's orbit caused by gravitational interactions with other bodies. |
| For example, the orbits of comets are often perturbed, particularly by the gravitational fields of the giant planets - Jupiter's gravitational influence caused the period of Comet Hale-Bopp's orbit to decrease from 4200 to 2800 years. |
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