Current Location:home > Detailed Browse

Article Detail

Cosm ologicalScaling Solutions and C ross-couplingExponentialPotential


We present a phase-space analysis of cosmology containing multiple scalar elds with a positive or negative cross-coupling exponential potential. We show that there exist power law kinetic-potential-scaling solutions for a sciently at positive potential or for a steep negative potential.The former is the unique late-ti e attractor, but it is difficult to yield assisted ination.Thelaterisneverstablein an expanding universe.M oreover,fora steep negative potentialthere existsa kinetic-dom inated regim e in which each solution isa latetime attractor. In the presence ofordinary m atterthese scaling solutionswith a negative cross-coupling potentialare found unstable. W e briey discuss the physicalconsequences of these results.
Download Comment Hits:874 Downloads:510
Recommended references: Zong-Kuan Guo,Yun-Song Piao,Rong-Gen Cai,Yuan-Zhong Zhang.(2017).Cosm ologicalScaling Solutions and C ross-couplingExponentialPotential.[ChinaXiv:201709.00142] (Click&Copy)
Version History
[V1] 2017-09-27 14:24:11 chinaXiv:201709.00142V1 Download
Related Paper


Current Browse

Cross Subject Browse

  • - NO