general holomorphic pure supergravity and its cosmology
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GENERAL HOLOMORPHIC PURE SUPERGRAVITY AND
ITS COSMOLOGY
Takahiro Terada
Univ. of Tokyo, Japan
Sergei V. Ketov and TT,
JHEP07(2013)127,
arXiv:1304.4319 [hep-th]
19th International Summer Institute on Phenomenology of Elementary Particles and Cosmology
GENERALIZATION OF
SUPERGRAVITY
SUPERSYMMETRIZATION OF MODIFIED GRAVITY
Ordinary Matter; 4.90% Dark Matter; 26.80%
Dark Energy; 68.30%
Energy Density of The Universe
Ordinary Matter Dark Matter Dark Energy
๐บ๐๐=8๐ ๐บ๐ ๐๐
Many reasons to do that!!โข pure theoretical interestsโข stringy/quantum correctionsโข potential applications to phenoโข application to inflationโข to embed modified gravity into
fundamental theory, etc.
Planck collaboration, arXiv:1303.5082
โข A. Einstein, 1915
gravityโข A. De Felice and S. Tsujikawa, Living Rev. Rel. 13
(2010) 3 and references therein.
gravityโข Our work
โข D. Z. Freedman, P. van Nieuwenhuizen and S. Ferrara,
Phys. Rev. D 13 (1976) 3214;โข S. Deser and B. Zumino, Phys. Lett. B 62 (1976) 335.
supergravityโข S.J. Gates, Jr. and S.V. Ketov, Phys. Lett. B674 (2009) 59
supergravityโข Our work
Simple
General
Supersymmetrization
Bosonic sector
NEW NEW
Positioning of the work
โ= โซ d2ฮ 2โฐ ๐น (โ ,๐ฒ )+H .c .where is a holomorphic function.
+H.c.
New action for supergravity
gravity and Inflation
๐ (๐ ,๐ถ )=๐ โ ๐ 2
6๐2 +๐๐ ๐ถ๐๐๐๐๐ถ๐๐๐๐
Starobinsky model + correction term () as a simple non-trivial example:
๐=34 ๐
2 (1โ๐โ โ2 /3๐+๐๐ถ๐๐๐๐๐ถ๐๐๐๐๐โ2 /3๐ )2
where is the inflaton mass and is a coupling constant.
๐=โ 12 โซ ๐4๐ฅ โโ๐ ๐ (๐ ,๐ถ)
f(R) gravity Scalar-tensor gravity
f(R,C) gravity scalar-tensor gravity with Weyl tensor
equivalent
equivalent
~๐=0.05~๐=0.01
~๐=0.002~๐=0
02~๐=โ0.01
~๐=โ0.05
๐=34 ๐
2 (1โ๐โ โ2 /3๐+~๐๐โ2 /3๐ )2
~๐โก๐๐ถ๐๐๐๐๐ถ๐๐๐๐
GENERAL HOLOMORPHIC PURE SUPERGRAVITY AND
ITS COSMOLOGY
Takahiro Terada
Univ. of Tokyo, Japan
Sergei V. Ketov and TT,
JHEP07(2013)127,
arXiv:1304.4319 [hep-th]
19th International Summer Institute on Phenomenology of Elementary Particles and Cosmology
โ= โซ d2ฮ 2โฐ ๐น (โ ,๐ฒ )+H .c .SUMMARYโข There are many reasons to study modified supergravity.
โข We proposed a new type of action for modified gravity and supergravity.
โข Itโs interesting to compare the results with future CMB data.
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