Cosmological constant, Physics

Cosmological constant; Lambda

The constant introduced towards the Einstein field equation, planned to admit static cosmological solutions. During current philosophical view was the steady-state model of the Universe, where the Universe has been approximately for infinite time. Early analysis of the field equation denoted that general relativity allowed dynamic cosmological models only (ones that are either expanding or contracting), however no static models. Einstein introduced the most natural abberation to the field equation which he could think of: the adding up of a term proportional to the spacetime metric tensor, g, along the constant of proportionality being the cosmological constant:

G + Lambda g = 8 pi T.

Hubble's later on discovery of the expansion of the Universe mentioned that the introduction of the cosmological constant was needless; had Einstein supposed what his field equation was telling him, he could claimed the expansion of the Universe as possibly the greatest and most convincing prediction of general relativity; he called this the "greatest blunder of my life."

Posted Date: 3/28/2013 1:59:54 AM | Location : United States







Related Discussions:- Cosmological constant, Assignment Help, Ask Question on Cosmological constant, Get Answer, Expert's Help, Cosmological constant Discussions

Write discussion on Cosmological constant
Your posts are moderated
Related Questions
Excitation of Modes in Fiber A multimode fiber is used to couple light into a single mode fiber. Both fibers have the same total diameter. Explain the coupling. Use

De?ne reduction potential and oxidation potential. Reduction potential of a metal is the measure of tendency of a metallic electrode to gain electrons when it is in contact wit

It is defined as an electric strain produced in an atom due to application of external electric field to the bulk material. It is the result of the displacement of the positively c

Given the properties in the table below a. Plot the engineering stress-strain curves for the 3 materials. You can assume the materials behave linearly when they plastically

how to calculate speed of light?  The speed of light in vacuum, normally denoted by symbol c, is a universal physical constant which is very important in various areas of physi

The energy to which the human ears are sensitive is named as sound. In general all parts of waves are produced in an elastic material phase, Irrespective of while these are listen

how faster ultrsonic waves will travel in solids.

what are isotopes?

the force of a capillarity in plant is given by surface tension =density*r*g*h/2.is the equation correct or not

why gravitational energy for a system of particles is found by first finding the gravitational energy between individual particles and then adding it up? Ans) It is a scalar qua