English Explanatory Dictionary

quantum limit

English dictionary entry

Meanings

noun
  1. The limit on measurement accuracy at quantum scales due to back-action effects.
  2. The shortest wavelength in an X-ray spectrum.

Word forms

quantum limit quantum limits

Etymology

The spectroscopic sense is first attested in the 1920s; the measurement sense was coined by Vladimir Braginsky in a 1967 paper, and was originally restricted to the study of gravitational waves.

Derived words

standard quantum limit
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