Cosmology

幂律 f(Q) 宇宙学

Power-law f(Q) cosmology

A modified theory of gravity that extends the f(R) formalism by introducing a function f(Q) of the Q invariant, often parameterized as a power law, to describe the dynamics of the universe. / 一种扩展 f(R) 形式论的修正引力理论，通过引入 Q 不变量的函数 f(Q)（通常参数化为幂律）来描述宇宙动力学。

Knowledge type: 自然理论
First proposed or discovered
Proposer: Turkey Farm member
Creator: 农场主
Last updated: 2026-11-10 21:06:03

Sub-knowledge points

Modified Friedmann equationsEvolution of cosmological parameters

Higher-order knowledge points

General RelativityDark Energy models

Main parameters and performance indicators

Q: The Q invariant, a scalar constructed from the Ricci scalar and its derivativesf(Q): The function of the Q invariant, often parameterized as f(Q) = Q^n

Open problems

Consistency with the full DESI DR2 datasetConstraints on the power-law index n

Related literature

ranked by community stars

Power-law f(Q) cosmology in light of DESI DR2 observationsOpen source

幂律 f(Q) 宇宙学

Sub-knowledge points

Higher-order knowledge points

Main parameters and performance indicators

Open problems

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