Basic concepts of quantum mechanics: Difference between revisions

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The uncertainty principle shows mathematically that the product of the uncertainty in the position and [[momentum]] of a particle (momentum is velocity multiplied by mass) can never be less than a certain value, and that this value is related to Planck's constant (actually approximating, very closely, to a value of one-half of Planck's constant).

Heisenberg gave, as an example, the measurement of the position and momentum of an electron using a photon of light. In measuring the electron's position, the higher the frequency of the photon the more accurate is the measurement of the position of the impact, but the greater is the disturbance of the electron, which absorbs a random amount of energy, rendering the measurement of its momentum increasingly uncertain: for one is measuring its disturbed momentum and, not its original momentum;. whereras withWith a photon of lower frequency the disturbance ofin the momentum is less, but so is the accuracy of the measurement of the position of the impact.

==Schrödinger's wave equation==