Remarks on quantum field theory on de Sitter and anti-de Sitter space-times

Pramana ◽  
2012 ◽  
Vol 78 (6) ◽  
pp. 853-864 ◽  
Author(s):  
HENRI EPSTEIN
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
De Sitter Space ◽  
Quantum Field ◽  
De Sitter

scholarly journals Analyticity Properties and Thermal Effects for General Quantum Field Theory on de Sitter Space-Time

1998 ◽  
Vol 196 (3) ◽  
pp. 535-570 ◽  
Author(s):  
Jacques Bros ◽  
Henri Epstein ORF RID="a3"> ◽  
Ugo Moschella
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
Thermal Effects ◽  
De Sitter Space ◽  
Space Time ◽  
Quantum Field ◽  
De Sitter ◽  
General Quantum

Quantum field theory in anti-de Sitter space-time

1978 ◽  
Vol 18 (10) ◽  
pp. 3565-3576 ◽  
Author(s):  
S. J. Avis ◽  
C. J. Isham ◽  
D. Storey
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
De Sitter Space ◽  
Space Time ◽  
Quantum Field ◽  
De Sitter

scholarly journals TOWARDS A CPT INVARIANT QUANTUM FIELD THEORY ON ELLIPTIC DE SITTER SPACE

2008 ◽  
Vol 23 (12) ◽  
pp. 1821-1838 ◽  
Author(s):  
ZHE CHANG ◽  
XIN LI
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
Complete Information ◽  
De Sitter Space ◽  
Quantum Field ◽  
De Sitter ◽  
Cpt Invariance ◽  
Spinor Fields ◽  
Invariant Quantum ◽  
Antipodal Identification

Consequences of Schrödinger's antipodal identification on quantum field theory in de Sitter space are investigated. The elliptic ℤ2 identification provides observers with complete information. We show that a suitable confinement on dimension of the elliptic de Sitter space guarantees the existence of globally defined spinors and orientable dS/ℤ2 manifold. In Beltrami coordinates, we give exact solutions of scalar and spinor fields. The CPT invariance of quantum field theory on the elliptic de Sitter space is presented explicitly.

Quantum field theory in de Sitter space: renormalization by point-splitting

1978 ◽  
Vol 360 (1700) ◽  
pp. 117-134 ◽  
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
Scalar Field ◽  
Stress Tensor ◽  
Dimensional Regularization ◽  
De Sitter Space ◽  
Quantum Field ◽  
De Sitter ◽  
Point Splitting

We examine the modes of a scalar field in de Sitter space and construct quantum two-point functions. These are then used to compute a finite stress tensor by the technique of covariant point-splitting. We propose a renormalization ansatz based on the DeWitt-Schwinger expansion, and show that this removes all am biguities previously present in pointsplitting regularization. The results agree in detail with previous work by dimensional regularization, and give rise to an anomalous trace with the conventional coefficient. We describe how’ our treatment may be extended to more general situations.

scholarly journals Quantum field theory in the flat chart of de Sitter space

2013 ◽  
Vol 87 (2) ◽  
Author(s):  
Yusuke Korai ◽  
Takahiro Tanaka
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
De Sitter Space ◽  
Quantum Field ◽  
De Sitter
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