All About the Einstein Field Equations - Physics Forums
Feb 26, 2024 · Tiny Numbers, Big Effects: The cosmological constant () in the EFE, originally introduced by Einstein to allow for a static universe, is estimated at less than . It’s small but …
Learn About the Friedmann Equation and the Cosmos
Dec 22, 2017 · The cosmological principle is fundamental to determining the geometry of the universe. For example, homogeneity and isotropy reduce the possible spaces that can exist …
What Is the Steady-state Model and Why It’s No Longer Viable
Dec 8, 2015 · This preferred frame is a key element in the steady state model and stands in contrast to the cosmological constant, which preserves the equivalence principle. The C Field …
Is the Universe Finite, or Is It Infinite? - Physics Forums
Mar 16, 2024 · Standard cosmological models come in three flavors, open, flat, and closed, [Carroll] whose spatial curvatures are negative, zero, and positive. The open and flat types …
The Units of the Cosmological Constant: eV^2 • Physics Forums
Jun 1, 2022 · I was referring to , the energy density of the cosmological constant. The first paper you cite in the OP is discussing the scale of the energy density, the others discuss the …
Learn About the FLRW Metric and The Friedmann Equation
Jan 9, 2018 · Cosmological redshift is a very useful tool to calculate the rate of expansion since the expansion causes redshift. We can find this relationship using the FLRW metric.
At What Velocity Does the Universe Expand and Can It Be Faster …
Feb 9, 2016 · You may sometimes see statements that cosmological inflation caused the universe to expand faster than c, or that the edge of the observable universe occurs at the place where …
Light speed and cosmological constant - Physics Forums
Jul 26, 2012 · E=mc2 gives us the cosmological constant, which later was found to be the maximum speed at which light can travel. i also understand that when accelerating...
How does the symbol Λ cosmological constant relate to Ω_Λ or ρ_Λ?
Jun 18, 2022 · I How does the symbol Λ cosmological constant relate to Ω_Λ or ρ_Λ? Buzz Bloom Jun 18, 2022 Constant Cosmological Cosmological constant Symbol Click For Summary
Learn Inflation Balloon Analogy Misconceptions - Physics Forums
Sep 16, 2015 · FIFTH: COSMOLOGICAL TIME There are sometimes attempts to bring cosmological time into the analogy by considering that the 3D center of the balloon represents …