4 papers
Non-Gaussianity in KKLMMT model
Qing-Guo Huang, Ke Ke
We investigate the non-Gaussianity of the brane inflation which happens in the same throat in the framework of the generalized KKLMMT model. When we take the constraints from non-G…
One conjecture and two observations on de Sitter space
Qing-Guo Huang, Ke Ke, Miao Li
We propose that the state represented by the Nariai black hole inside de Sitter space is the ground state of the de Sitter gravity, while the pure de Sitter space is the maximal en…
Cardy-Verlinde Formula and Holographic Dark Energy
Ke Ke, Miao Li
If we separate energy in a holographic theory into an extensive part and an intrinsic part, where the extensive part is given by the cosmological constant, and assume entropy be gi…
A general condition of inflationary cosmology on trans-Planckian physics
Ke Ke
We consider a more general initial condition satisfying the minimal uncertainty relationship. We calculate the power spectrum of a simple model in inflationary cosmology. The resul…