Birth of the universe from the landscape of string theory
Abstract
We show that a unique, most probable and stable solution for the wavefunction of the universe, with a very small cosmological constant Λ_1∼eqbig(π/l_{pN}big)^2, can be predicted from the supersymmetric minisuperspace with N vacua of the landscape of string theory without referring to the anthropic principle. Due to the nearest neighbor tunneling in moduli space lattice, the Nfold degeneracy of the vacua is lifted and a discrete spectrum of bound state levels over the whole minisuperspace emerges. Supersymmetry is spontaneously broken by these bound states, with discrete nonzero energy levels Λ_s∼eqbig(sπ/l_{pN}big)^2, s=1,2,...
 Publication:

European Physical Journal C
 Pub Date:
 February 2007
 DOI:
 10.1140/epjc/s1005200601559
 arXiv:
 arXiv:hepth/0410213
 Bibcode:
 2007EPJC...49..869K
 Keywords:

 High Energy Physics  Theory;
 Astrophysics;
 General Relativity and Quantum Cosmology;
 High Energy Physics  Phenomenology
 EPrint:
 4 pp, no figures