scholarly journals Simple supergravity model of inflation constrained with Planck 2018 data

2020 ◽  
Vol 101 (2) ◽  
Author(s):  
Gabriel Germán ◽  
Juan Carlos Hidalgo ◽  
Francisco X. Linares Cedeño ◽  
Ariadna Montiel ◽  
J. Alberto Vázquez
Keyword(s):  
Author(s):  
Leonardo Castellani ◽  
Riccardo D’ Auria ◽  
Pietro Fré
Keyword(s):  

1987 ◽  
Vol 70 (1) ◽  
pp. 52-64 ◽  
Author(s):  
I. A. Bandos ◽  
V. G. Zima

1983 ◽  
Vol 126 (1-2) ◽  
pp. 33-36 ◽  
Author(s):  
T. Dereli ◽  
M. Panahimoghaddam ◽  
A. Sudbery ◽  
R.W. Tucker
Keyword(s):  

1993 ◽  
Vol 08 (21) ◽  
pp. 1983-1997 ◽  
Author(s):  
Ž. ANTUNOVIĆ ◽  
M. BLAGOJEVIĆ ◽  
T. VUKAŠINAC

A generalized Lagrangian BRST formalism is used to study the quantum structure of the simple supergravity, whose classical gauge algebra is not closed. It is shown that in this approach one can naturally introduce a set of auxiliary fields as certain combinations of ghosts and antifields, so that the resulting theory has the closed classical gauge algebra.


2000 ◽  
Vol 15 (20) ◽  
pp. 1307-1320 ◽  
Author(s):  
N. DJEGHLOUL ◽  
M. TAHIRI

We develop a method to derive the on-shell invariant quantum action of the simple supergravity in such a way that the quartic ghost interactions term is explicity determined. First, we reinvestigate the simple supergravity in terms of a principal superfiber bundle. This gives rise to the closed geometrical BRST algebra. Therefore we determine the open BRST algebra, which realizes the invariance of the classical action. Then, given a prescription to build the full quantum action, we obtain the quantum BRST algebra. Together with the constructed quantum action this allows us to recover the auxiliary fields and the invariant extension of the classical action.


1997 ◽  
Vol 06 (04) ◽  
pp. 479-490 ◽  
Author(s):  
Giampiero Esposito ◽  
Giuseppe Pollifrone

A gauge-averaging functional of the axial type is studied for simple supergravity at one loop about flat Euclidean four-space bounded by a three-sphere, or two concentric three-spheres. This is a generalization of recent work on the axial gauge in quantum supergravity on manifolds with boundary. Ghost modes obey nonlocal boundary conditions of the spectral type, in that half of them obey Dirichlet or Neumann conditions at the boundary. In both cases, they give a vanishing contribution to the one-loop divergence. The admissibility of noncovariant gauges at the classical level is also proved.


1984 ◽  
Vol 41 (6) ◽  
pp. 170-172
Author(s):  
Ming-Quey Chen ◽  
De-Ching Chern ◽  
Rue-Ron Hsu ◽  
Wai Bong Yeung

1983 ◽  
Vol 121 (2-3) ◽  
pp. 123-129 ◽  
Author(s):  
John Ellis ◽  
D.V. Nanopoulos ◽  
K. Tamvakis

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