What are the Units of Einsteins comological constant ?

Question

And the dimensions in units of the right side of HIs Field equation components?

Answer 1

The cosmological constant (usually denoted by the Greek capital letter lambda: Λ) was proposed by Albert Einstein as part of his theory of general relativity to achieve a stationary universe. After the discovery of Hubble redshift and the introduction of the expanding space paradigm Einstein abandoned the concept. New discoveries in the 1990s have, however, renewed interest in a cosmological constant.

The units of Λ are 1/second2. The constant is proportional to the energy density of the vacuum ρvac:

8pieG
Λ = -------- ρvac
Csq
where:

* G is the gravitational constant
* c is the speed of light in vacuum

The term can be positive, negative, or zero. It is the energy density of empty space: it can be thought of as the "cost" of having space. Because the cosmological constant has negative pressure, according to general relativity a positive cosmological constant — which means empty space has positive energy — causes the expansion of empty space to accelerate (see dark energy for details).

Cosmologists generally describe the cosmological constant in units where unity would correspond to the value of the cosmological constant which would give a closed universe in the absence of matter. This normalised cosmological constant is usually called ΩΛ. In a flat universe ΩΛ corresponds to the fraction of the energy density of the Universe which is associated with the cosmological constant.

Answer 2

Hi. The number of ergs per cubic centimeter of completely empty space, measured at about 10^(-8) ergs/cm^3.

Answer 3

What you have is commonly known as an Einstonian Complex. You'll need some years of therapy and prescription medicine to reverse this damage. Because, Einstein... you'll never be.

Answer 4

yeah, i was gonna say what ranjit said