Zobrazeno 1 - 10
of 167
pro vyhledávání: '"Shukla, Pramod"'
We present a global embedding of the Fibre inflation model in perturbative large volume scenario (LVS) in which the inflationary potential is induced via a combination of string-loop corrections and higher derivative F$^4$-effects. The minimal Fibre
Externí odkaz:
http://arxiv.org/abs/2406.01694
The perturbative LARGE volume scenario (LVS) is a promising moduli stabilisation scheme in which the overall volume modulus of the compactifying Calabi-Yau (CY) threefold is dynamically stabilised to exponentially large values via using only perturba
Externí odkaz:
http://arxiv.org/abs/2405.06738
Publikováno v:
JHEP 05 (2024) 008
In this paper, we perform a systematic and analytical exploration of de Sitter conditions in type IIA compactifications with (non-)geometric fluxes along with the standard NS-NS and RR $p$-form fluxes. Exploiting the fact that the F-term scalar poten
Externí odkaz:
http://arxiv.org/abs/2402.13899
Publikováno v:
JHEP 02 (2024) 115
We quantitatively estimate the leading higher derivative corrections to ${\mathcal{N}}=1$ supergravity derived from IIB string compactifications and study how they may affect moduli stabilisation and LVS inflation models. Using the Kreuzer-Skarke dat
Externí odkaz:
http://arxiv.org/abs/2309.11697
Autor:
Leontaris, George K., Shukla, Pramod
Publikováno v:
Phys. Rev. D 109, 066018 (2024)
We present a symplectic formulation of the $N =1$ four-dimensional type IIB scalar potential arising from a flux superpotential which has four S-dual pairs of fluxes demanded by the U-dual completion arguments. Our symplectic formulation presents a v
Externí odkaz:
http://arxiv.org/abs/2309.08664
Autor:
Leontaris, George K., Shukla, Pramod
Publikováno v:
Phys. Rev. D 108, 126020 (2023)
In the context of $N =1$ four-dimensional type IIB supergravity theories, the U-dual completion arguments suggest to include four S-dual pairs of fluxes in the holomorphic superpotential, namely the so-called $(F, \, H), \, (Q, \, P), \, (P^\prime, Q
Externí odkaz:
http://arxiv.org/abs/2308.15529
Autor:
Leontaris, George K., Shukla, Pramod
Publikováno v:
PoS(CORFU2022)058
In this report, we present a concise review on the various moduli stabilisation schemes proposed in the context of type IIB superstring compactifications using Calabi-Yau orientifolds. We discuss the details of the known schemes by classifying them i
Externí odkaz:
http://arxiv.org/abs/2303.16689
Publikováno v:
JHEP 03 (2023) 132
In the context of type IIB superstring compactifications on K3-fibred (weak) Swiss-cheese Calabi Yau (CY) orientifolds, we consider the realisation of de Sitter vacua obtained through the introduction of an anti-D3-brane at the tip of a highly warped
Externí odkaz:
http://arxiv.org/abs/2206.12889
Autor:
Shukla, Pramod
Publikováno v:
JHEP 12 (2022) 055
In this article we present a pheno-inspired classification for the divisor topologies of the favorable Calabi Yau (CY) threefolds with $1 \leq h^{1,1}(CY) \leq 5$ arising from the four-dimensional reflexive polytopes of the Kreuzer-Skarke database. B
Externí odkaz:
http://arxiv.org/abs/2205.05215
Autor:
Leontaris, George K., Shukla, Pramod
Publikováno v:
JHEP 07 (2022) 047
In this work we investigate the moduli stabilisation problem and the requirements for de Sitter vacua within the framework of type IIB string theory. Using perturbative effects arising from the various sources such as $\alpha^\prime$ corrections, log
Externí odkaz:
http://arxiv.org/abs/2203.03362