Merge pull request #6 from ajsteinmetz/ajsteinmetz-patch-1

Update README.md

README.md

@@ -1,8 +1,8 @@
-# a-short-survey
-## A short survey of matter-antimatter evolution in the primordial universe
+# plasma-partition
+## Matter-antimatter origin of cosmic magnetism
 
 ## abstract
-In the early universe above temperature $T>20{\rm\ keV}$ there was an gargantuan density of electron-positron pairs which rapidly vanished. We explore the possibility that this phenomenon was responsible for generating primordial magnetic fields in the universe. At higher electron-positron pair densities, spin paramagnetism is dominant over the Landau orbital diamagnetism of the gas. In this work, we seek to describe the magnetization of (and possible magnetogenesis within) the primordial electron-positron plasma as it underwent a rapid drop in density of order ${\cal O}(10^{12})$ relative to the baryon density in the temperature range $200{\rm\ keV}>T>20{\rm\ keV}$. Our analysis focuses on the partition function of the relativistic Fermi gas at finite temperatures.
+We explore the hypothesis that the abundant presence of relativistic antimatter (positrons) in the primordial universe is the source of the intergalactic magnetic fields we observe in the universe today. We evaluate both Landau diamagnetic and magnetic dipole moment paramagnetic properties of the very dense primordial electron-positron $e^{+}e^{-}$-plasma, and obtain in quantitative terms the relatively small magnitude of the $e^{+}e^{-}$ magnetic moment polarization asymmetry required to produce a consistent self-magnetization in the universe.
 ## authors
 Andrew Steinmetz, Cheng Tao Yang, and Johann Rafelski