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- W2059018003 abstract "In the present article the thermodynamic results of the Lee-Wick partner infested universe have been applied in a toy model where there is one Lee-Wick partner to each of the standard model particles, and moreover, the longitudinal degrees of freedom of the massive partners of the standard massless gauge bosons are neglected at high temperatures. For practical purposes, the chiral fermionic sector of Lee-Wick theories requires two Lee-Wick partners per fermion, which opens up the possibility for a negative energy density of the early universe. A toy Lee-Wick model with one fermionic partner relaxes such oddities and hence is easy to deal with. In a similar way, the longitudinal degrees of freedom of the massive gauge boson partners also have the potential to yield negative energy densities, and thus those will be neglected in a toy model study. In such a toy model one can analytically calculate the time-temperature relation in the very early radiation dominated universe which shows interesting new physics. The article also tries to point out how a Lee-Wick particle dominated early cosmology transforms into the standard cosmological model. Based on the results of this toy model analysis a brief discussion is presented on the more realistic model, which can accommodate two Lee-Wick partners for each standard fermionic field and the longitudinal degree of freedom of partners of the gauge fields. It has been shown that such a universe is mostly very difficult to attain, but there are certain conditions where one can indeed think of such a universe which can evolve into the standard cosmological universe in a short time duration." @default.
- W2059018003 created "2016-06-24" @default.
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- W2059018003 date "2012-07-03" @default.
- W2059018003 modified "2023-10-16" @default.
- W2059018003 title "Toy model based analysis on the effect of the Lee-Wick partners in the evolution of the early universe" @default.
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- W2059018003 doi "https://doi.org/10.1103/physrevd.86.025009" @default.
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