Definition of uncertainty principle in English:

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uncertainty principle

Pronunciation: /ˌənˈsərtntē ˈprinsəpəl/


The principle that the momentum and position of a particle cannot both be precisely determined at the same time.
Example sentences
  • Subject to the limitations of the Heisenberg uncertainty principle, the advancement of atomic physics and quantum physics allowed increasingly accurate descriptions of complex atoms.
  • It turns out to be a basic consequence of the two basic principles of quantum theory, the uncertainty principle and the superposition principle.
  • In addition, the uncertainty principle of quantum mechanics prevents speculation on times shorter than 10-43 seconds after the big bang.
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