Classical universe emerging from quantum cosmology without horizon and flatness problems

The European Physical Journal C

P. V. Moniz¹  M. Fathi²  S. Jalalzadeh² 

[1] Centro de Matemática e Aplicações-UBI, Covilhã, Portugal;Departmento de Física, Universidade da Beira Interior, 6200 , Covilhã, Portugal;Department of Physics, Shahid Beheshti University, G. C., Evin, Tehran, Iran;

关键词: Cosmic Time;    Jacobi Formalism;    Quantum Cosmology;    Quantum Potential;    Hamiltonian Constraint;   

DOI  :  10.1140/epjc/s10052-016-4373-5

来源: Springer

【 摘 要 】

We apply the complex de Broglie–Bohm formulation of quantum mechanics in Chou and Wyatt (Phys Rev A 76: 012115, 2007), Gozzi (Phys Lett B 165: 351, 1985), Bhalla et al. (Am J Phys 65: 1187, 1997) to a spatially closed homogeneous and isotropic early universe whose matter contents are radiation and dust perfect fluids. We then show that an expanding classical universe can emerge from an oscillating (with complex scale factor) quantum universe without singularity. Furthermore, the universe obtained in this process has no horizon or flatness problems.

【 授权许可】

CC BY