Quantum probability distributions in the early Universe. IV. Stochastic dynamics in de Sitter space

1989 ◽  
Vol 39 (12) ◽  
pp. 3630-3641 ◽  
Author(s):  
F. R. Graziani
Keyword(s):  
Early Universe ◽  
Stochastic Dynamics ◽  
Probability Distributions ◽  
De Sitter Space ◽  
Quantum Probability ◽  
De Sitter

scholarly journals Formation of Conserved Charge at the de Sitter Space

Particles ◽  
2020 ◽  
Vol 3 (2) ◽  
pp. 355-363
Author(s):  
Valery V. Nikulin ◽  
Polina M. Petriakova ◽  
Sergey G. Rubin
Keyword(s):  
Early Universe ◽  
Extra Dimensions ◽  
De Sitter Space ◽  
Lepton Number ◽  
Relaxation Processes ◽  
Two Dimensional ◽  
Charge Accumulation ◽  
De Sitter ◽  
Extra Space

The article considers a new mechanism of charge accumulation in the early Universe in theories with compact extra dimensions. The relaxation processes in the extra space metric that take place during its formation lead to the establishment of symmetrical extra space configuration. As a result, the initial accumulation of the number associated with the symmetry occurs. We demonstrate this mechanism using a simple example of a two-dimensional apple-like extra space metric with U ( 1 ) -symmetry. The conceptual idea of the mechanism can be used to develop a model for the production of the baryon or lepton number in the early Universe.

On negative mass in inflating universes

2015 ◽  
Vol 93 (9) ◽  
pp. 966-967 ◽  
Author(s):  
Jonathan Belletête ◽  
Saoussen Mbarek ◽  
M.B. Paranjape
Keyword(s):  
Early Universe ◽  
De Sitter Space ◽  
De Sitter ◽  
Negative Mass ◽  
Physical Sense

We consider negative mass solutions in inflating universes. These universes correspond to asymptotically de Sitter space–times. We show that negative mass makes perfect physical sense and could be of relevance in the early universe.

scholarly journals Gravitational turbulent instability of anti-de Sitter space

2012 ◽  
Vol 29 (19) ◽  
pp. 194002 ◽  
Author(s):  
Óscar J C Dias ◽  
Gary T Horowitz ◽  
Jorge E Santos
Keyword(s):  
De Sitter Space ◽  
De Sitter
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