Multi-dimensional classical and quantum cosmology: exact solutions, signature transition and stabilization | Zendy

S. Jalalzadeh | Zendy; F. Ahmadi | Zendy; Hamid Reza Sepangi | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Multi-dimensional classical and quantum cosmology: exact solutions, signature transition and stabilization

Author(s) -

S. Jalalzadeh,

F. Ahmadi,

Hamid Reza Sepangi

Publication year - 2003

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2003/08/012

Subject(s) - quantum cosmology , scalar field , physics , superspace , cosmology , mathematical physics , einstein field equations , spacetime , signature (topology) , scalar (mathematics) , quantum , classical mechanics , theoretical physics , quantum mechanics , quantum gravity , field equation , mathematics , supersymmetry , geometry

We study the classical and quantum cosmology of a $(4+d)$-dimensionalspacetime minimally coupled to a scalar field and present exact solutions forthe resulting field equations for the case where the universe is spatiallyflat. These solutions exhibit signature transition from a Euclidean to aLorentzian domain and lead to stabilization of the internal space, in contrastto the solutions which do not undergo signature transition. The correspondingquantum cosmology is described by the Wheeler-DeWitt equation which has exactsolutions in the mini-superspace, resulting in wavefunctions peaking around theclassical paths. Such solutions admit parametrizations corresponding to metricsolutions of the field equations that admit signature transition.Comment: 15 pages, two figures, to appear in JHE

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research