Bulg. J. Phys. vol.45 no.2 (2018), pp. 203-220

From Black Holes to Baby Universes: Exploring the Possibility of Creating a Cosmos in the Laboratory

S. Ansoldi1,2,3, Z. Merali4, E.I. Guendelman5,6,7
1Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Trieste, 34149 Padriciano (TS), Italy
2International Center for Relativistic Astrophysics (ICRA), Piazza della Repubblica 10, 65122 Pescara (PE), Italy
3Universitá degli Studi di Udine, Dipartimento di Scienze Matematiche Informatiche e Fisiche, 33100 Udine (UD), Italy
4Foundational Questions Institute (FQXi), PO Box 3055, Decatur, GA 30031, USA
5Ben Gurion University of the Negev, Department of Physics, Beer-Sheva, Israel
6Bahamas Advanced Study Institute and Conferences, 4A Ocean Heights, Hill View Circle, Stella Maris, Long Island, The Bahamas
7Frankfurt Institute for Advanced Studies, Giersch Science Center, Campus Riedberg, Frankfurt am Main, Germany
Abstract. We discuss the essential features of baby-universe production, starting from a description of black holes and wormholes, in terms of the causal structure of spacetime, and following a qualitative review of the connection between vacuum decay and inflation in early universe cosmology. Related open questions are also addressed, especially in connection with the possibility that baby universes could be formed within our present universe — either in a future particle accelerator, or spontaneously.

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