decoupling

(redirected from Last scattering)
Also found in: Medical, Financial, Encyclopedia.
Related to Last scattering: Relic radiation

de·cou·ple

 (dē-kŭp′əl)
tr.v. de·cou·pled, de·cou·pling, de·cou·ples
1. Electronics To reduce or eliminate the coupling of (one circuit or part to another).
2. Physics To decrease or eliminate airborne shock waves from (an explosion) by having it take place underground.
3. To separate or detach: "Bipeds have a potential advantage over quadrupeds in decoupling their breathing from their locomotion" (Craig Stanford).

de·cou′pler n.

decoupling

(diːˈkʌplɪŋ)
n
1. (General Engineering) the separation of previously linked systems so that they may operate independently
2. (Electronics) electronics the reduction or avoidance of undesired distortion or oscillations in a circuit, caused by unwanted common coupling between two or more circuits
Translations
découplage
References in periodicals archive ?
At this stage of expansion and cooling, called the last scattering, the universe cooled enough for the electrons and protons whizzing about to combine into hydrogen atoms, creating space for the photons to travel uninhibited in a now transparent universe.
Linder said that while conventional dark energy, like the cosmological constant, are diluted to one part in a billion of total energy density around the time of the CMB's last scattering, early dark energy theories can have 1-to-10 million times more energy density."
Big Bang Time Temp (kelvin) Inflation ends [10.sup.-35] sec [10.sup.19] Atomic nuclei form 100 sec [10.sup.9] CMB spectrum fixed 1 month [10.sup.7] Radiation balances matter 10,000yrs 20,000 CMB last scattering 380, 000 yrs 3,000 Present 13.7 billion years after the Big Bang Assistant editor Camille M.