Heisenberg uncertainty principle

Heisenberg uncertainty principle - use, the more precisely...

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Heisenberg uncertainty principle The uncertainty principle is a rather interesting idea, stating that it is not possible to measure both the position and momentum of a particle with infinite precision. It also states that the more accurately you measure a particle's position, the less accurately you're able to measure it's momentum, and vice versa. This idea is really not relevant when you're making measurements of large objects. It is relevant, however, when you're looking at very small objects such as electrons. Consider that you're trying to measure the position of an electron. To do so, you bounce photons off the electron; by figuring out the time it takes for each photon to come back to you, you can figure out where the electron is. The more photons you
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Unformatted text preview: use, the more precisely you can measure the electron's position. However, each time a photon bounces off the electron, momentum is transferred to the electron. The more photons you use, the more momentum is transferred, and because you can't measure that momentum transferred to infinite precision the more uncertainty you're introducing in the measurement of the momentum of the electron. Heisenberg showed that there is a limit to the accuracy you can measure things: The uncertainty can also be stated in terms of the energy of a particle in a particular state, and the time in which the particle is in that state:...
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This note was uploaded on 11/22/2011 for the course PHY PHY2053 taught by Professor Davidjudd during the Fall '10 term at Broward College.

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