scholarly journals QFT and Topology in Two Dimensions: $$\mathrm{SL}(2, {{\mathbb {R}}})$$-Symmetry and the de Sitter Universe

2021 ◽  
Author(s):  
Henri Epstein ◽  
Ugo Moschella
Keyword(s):  
Two Dimensions ◽  
De Sitter ◽  
And Topology ◽  
Sitter Universe ◽  
De Sitter Universe ◽  
R Symmetry

scholarly journals PHANTOM AND QUANTUM MATTER IN AN ANTI DE SITTER UNIVERSE

2004 ◽  
Vol 19 (01) ◽  
pp. 29-36 ◽  
Author(s):  
EMILIO ElIZALDE ◽  
JOHN QUIROGA HURTADO
Keyword(s):  
Perfect Fluid ◽  
Quantum Effects ◽  
Energy Conditions ◽  
De Sitter ◽  
Quantum Matter ◽  
Trace Anomaly ◽  
Sitter Universe ◽  
De Sitter Universe ◽  
Phantom Matter

We consider an anti de Sitter universe filled by quantum CFT with classical phantom matter and perfect fluid. The model represents the combination of a trace-anomaly annihilated and a phantom driven anti de Sitter universes. The influence exerted by the quantum effects and phantom matter on the AdS space is discussed. Different energy conditions in this type of universe are investigated and compared with those for the corresponding model in a de Sitter universe.

scholarly journals Scalar pair production in a magnetic field in de Sitter universe

2018 ◽  
Vol 78 (5) ◽  
Author(s):  
Mihaela-Andreea Băloi ◽  
Cosmin Crucean ◽  
Diana Popescu
Keyword(s):  
Magnetic Field ◽  
Pair Production ◽  
De Sitter ◽  
Sitter Universe ◽  
De Sitter Universe

scholarly journals Quantum annihilation of Anti-de Sitter universe

2000 ◽  
Vol 475 (3-4) ◽  
pp. 247-252 ◽  
Author(s):  
Iver Brevik ◽  
Sergei D. Odintsov
Keyword(s):  
De Sitter ◽  
Sitter Universe ◽  
De Sitter Universe

Coupling between time reversal and the space-time symmetries of the de Sitter universe

1974 ◽  
Vol 9 (10) ◽  
pp. 2710-2716 ◽  
Author(s):  
Ronald L. Mallett ◽  
Gordon N. Fleming
Keyword(s):  
Time Reversal ◽  
Space Time ◽  
De Sitter ◽  
Sitter Universe ◽  
De Sitter Universe

Massless particles, conformal group, and de Sitter universe

1981 ◽  
Vol 23 (6) ◽  
pp. 1278-1289 ◽  
Author(s):  
E. Angelopoulos ◽  
M. Flato ◽  
C. Fronsdal ◽  
D. Sternheimer
Keyword(s):  
Conformal Group ◽  
De Sitter ◽  
Massless Particles ◽  
Sitter Universe ◽  
De Sitter Universe

The dominant local instabilities in an Einstein-de Sitter universe

1990 ◽  
Vol 361 ◽  
pp. 331 ◽  
Author(s):  
O. M. Blaes ◽  
P. M. Goldreich ◽  
J. V. Villumsen
Keyword(s):  
De Sitter ◽  
Sitter Universe ◽  
De Sitter Universe
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