Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-11-25
Phys. Lett. A, 372, 2741-2745 (2008)
Astronomy and Astrophysics
Astrophysics
Scientific paper
10.1016/j.physleta.2007.12.041
Coherent properties of the baryon-photon fluid decoupling are considered in the terms of an effective nonlinear Schr\"{o}dinger equation for a macroscopic wave function that specifies the index of the coherent state. Generation of a transitional acoustic turbulence preceding formation of large-scale condensate in the plasma and its influence on the CMB power spectrum has been studied. A scaling $k^{-1}$ law is derived for the CMB Doppler spectrum $E(k)$ (angle-averaged) in the {\it wavenumber} space, for sufficiently large wavenumber $k$ and for the weak nonlinear and completely disordered initial conditions. Using the recent WMAP data it is shown that the so-called first acoustic peak represents (in a compensated spectral form) a pre-condensate fraction of the spectrum $E(k)$ at a rather advance stage of the condensate formation process.
No associations
LandOfFree
Decoupling and coherent plasma oscillations around last scattering does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Decoupling and coherent plasma oscillations around last scattering, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Decoupling and coherent plasma oscillations around last scattering will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-512135