Decoupling and coherent plasma oscillations around last scattering
| dc.creator | Bershadskii, A. | |
| dc.date | 2007-11-25 | |
| dc.date.accessioned | 2026-07-07T09:30:21Z | |
| dc.date.available | 2026-07-07T09:30:21Z | |
| dc.description | Coherent properties of the baryon-photon fluid decoupling are considered in the terms of an effective nonlinear Schrödinger 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. | |
| dc.identifier | https://arxiv.org/abs/0711.3903 | |
| dc.identifier | http://arxiv.org/abs/0711.3903 | |
| dc.identifier | Phys. Lett. A, 372, 2741-2745 (2008) | |
| dc.identifier | doi:10.1016/j.physleta.2007.12.041 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/158094 | |
| dc.subject | Astrophysics | |
| dc.subject | Chaotic Dynamics | |
| dc.subject | Plasma Physics | |
| dc.title | Decoupling and coherent plasma oscillations around last scattering | |
| dc.type | text |