quantum limit

noun — 2 senses

quantum limit

noun

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.

1

The limit on measurement accuracy at quantum scales due to back-action effects.

Quantum mechanics

  • "This book is essential reading for all scientists and engineers the potential applications of technology near the quantum limit."1995, Vladimir Borisovich Braginskiĭ, Farid Ya. Khalili, Quantum Measurement, →ISBN, page i:
2

The shortest wavelength in an X-ray spectrum.

  • "The voltage and wave-length at the quantum limit of the spectrum under investigation are denoted by ν₀ and λ₀."1935, Donald Stover Piston, The Polarization of X-rays from Thin Targets, page 4:
Derived terms
standard quantum limit

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.