Recent content by houhou.trad

spacejunkie, thank you for this reply :smile:. I think that it would be very helpful.

Let's say I am interested in the Quantum creation of universes. what is the main physical and mathematical tools I need to read and understand Quantum cosmology, assuming that I have some grasp of Q.M. and G.R.?

Do you mean quantum cosmology demand more geometry than that we find in usual G.R.?

Thanks Bapowell for the reply. I am perhaps interesting in Quantum creation of universes. I want to understand some papers that used Bohmian mechanics for Quantum Cosmology, but first, I have to read about Quantum Cosmology.

Thanks ChrisVer. This is a very helpful answer for me. I have some weakness in grasp of QFT. Perhaps that's why I have found problems. But about cosmology, all I know is from some introductory such as B. Ryden and M. Roos. Is this sufficient?

Thanks ChrisVer. I am now looking at this article. What I have meant is the prerequisite background to make Quantum Cosmology more understandable.

Hello every body. I want to learn about quantum cosmology but I always find lot of difficulties :confused:. I have a very usual background :frown: on Quantum Mechanics and General Relativity. What are the required specific topics of QM or GR that i should learn before I can learn about Quantum...

I am working on an introduction to cosmology, I have began by the Newtoniant one (the Hubble law, the Friedmann, fluid and acceleration equations), and some of the aspects of the relativitic one. I want to relate the tow parts by mentioning the shortcomings of the first, and then mentioning the...

thank you every body

I can understand how can inflation give rise to the isotropy of the CMB, but that it can give rise also to the irregularities in the CMB...!? Please, can anyone explain me this? thanks.

Thank you narrator and cephron, I think the idea is now somewhat more clear.

I say always that the universe has expanded, from an initially-hot and dense state, until it get its current forme... But it will be very natural to ask the question: at the first instances of its expansion, what were the boundaries of this universe, and what were the exterior of this...

Thus, want you say that we know the source wavelength of these galaxies because we know already the elements that constituting them?

Hi all, in order to determine the recessional velocity of same galaxy we use the redshift law: [(observed wavelength) -(source wavelength) ]/source wavelength=v/c The problem I have found here:confused: is how we can know the source wavelength. thinks.

Thanks narrator, your thread have helped me too.. thanks again