What is Early universe: Definition and 111 Discussions

Did the era prior to decoupling experience abundant particle resonances that are now rare? Were there then composite and stable entities, like atoms, constructed from these particles? What would the lifetimes of the resonances be, given that their optimum surrounding conditions remained...

I heard from a TV program that higher density of the early universe resulted in a faster expansion rate, and the lower density of the present universe has a lower expansion rate. Could anyone please expalin to me why? Thanks =)

Can anybody explain to me how our telescopes are able to capture images/light from the early universe (just after the big bang)? Every time there is an article that claims this, I scratch my head. I'd like to hear if someone has a "simple" explanation to this. Because I think the light...

This is not a paper, but may be of interest for anyone into reionization. http://highz.ita.uni-heidelberg.de/pdf-files/Haiman.pdf

Was the moment of 'first-light' or 'Lights-on' which occurred in the early Universe when Matter started to Shine 'light from the first galaxies', equivilent to the first Gravitational Wave signature from the Big-Bang? If one was do insinuate that the first primordial outward 'inflation' wave...

Interesting experiment http://www.usatoday.com/tech/science/discoveries/2005-04-19-big-bang-mystery_x.htm

The Schwarzschild Radius (R) is proportional to the mass M of the structure in question, and not its density. Let's suppose that the R(sun)=2 km for the sake of argument. And further let's suppose that if an amount of matter equal to our sun - M(sun) - is confined within a 2 km radius, it can...

When the universe expanded so that the quarks in it reached a separation of 10^-15 metres, did quark confinement create new quarks,and if so, what proportion of the quarks that galaxies are made of, were created by confinement?

I am struggling to come to terms with the theory of inflation. The figures I've been presented with mean that the Universe for a very short time expanded at a speed much greater than the speed of light. Is that possible?

thanks to MARCUS. this discussion started in S B and LQG, i thought i had better move to a more appropriate place. the recent discovery of a Z=10 galaxy, if confirmed means it was was formed when our universe was only 500MYs old. this paper discuses the discovery...

Einstein Solution c(n)*(1*1.001/1)*v*n=L=v*n=LW=v*(n-l^2)=LWH=v*(n-l^3)=LWHV The point of this equation is to represent the un-assisted method for the creation of matter in the early universe. Everything starts out as nothing. Nothing is made of imaginary particles. Imaginary...