noun
de Sitter space
A mathematical model of the universe in general relativity, characterized by a positive cosmological constant. Used in cosmology and theoretical physics.
ド・ジッター空間は、正の宇宙定数を持つアインシュタイン方程式の真空解の一つです。
De Sitter space is one of the vacuum solutions to Einstein's field equations with a positive cosmological constant.