scholarly journals Statistical entropy of two-dimensional dilaton de Sitter space

2005 ◽  
Vol 624 (3-4) ◽  
pp. 275-280 ◽  
Author(s):  
David A. Lowe
1999 ◽  
Vol 468 (1-2) ◽  
pp. 52-57 ◽  
Author(s):  
Jin-Ho Cho ◽  
Taejin Lee ◽  
Gordon Semenoff

Particles ◽  
2020 ◽  
Vol 3 (2) ◽  
pp. 355-363
Author(s):  
Valery V. Nikulin ◽  
Polina M. Petriakova ◽  
Sergey G. Rubin

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.


1986 ◽  
Vol 273 (2) ◽  
pp. 487-500 ◽  
Author(s):  
Takeo Inami ◽  
Hirosi Ooguri

2002 ◽  
Vol 17 (14) ◽  
pp. 887-897 ◽  
Author(s):  
ZHONG-HENG LI

We consider the divergences at all levels for the statistical entropy of gravitational, electromagnetic, neutrino and scalar fields on extremal and nonextremal Reissner–Nordström–de Sitter space–time background in terms of the brick-wall model. We find that entropy of spin fields within a region near coinciding horizons has higher divergence than usual. The earlier result that the entropy of spin fields is proportional to scalar one or the horizon area holds only for the thin region near an isolated horizon, since the spin-dependent divergences exist in all other cases.


2016 ◽  
Vol 2016 (12) ◽  
pp. 12C104 ◽  
Author(s):  
Juan Maldacena ◽  
Douglas Stanford ◽  
Zhenbin Yang

2003 ◽  
Vol 44 (1) ◽  
pp. 146-155
Author(s):  
A. V. Grinchuk ◽  
E. A. Ushakov

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