TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhys.15.6.225
TI  - The inheritance of energy conditions: Revisiting no-go theorems in string compactifications
PY  - 2023/12/05
UR  - https://scipost.org/SciPostPhys.15.6.225
JF  - SciPost Physics
JA  - SciPost Phys.
VL  - 15
IS  - 6
SP  - 225
A1  - Bernardo, Heliudson
AU  - Brahma, Suddhasatwa
AU  - Faruk, Mir Mehedi
AB  - One of the fundamental challenges in string theory is to derive realistic four-dimensional cosmological backgrounds from it despite strict consistency conditions that constrain its possible low-energy backgrounds. In this work, we focus on energy conditions as covariant and background-independent consistency requirements in order to classify possible backgrounds coming from low-energy string theory in two steps. Firstly, we show how supergravity actions obey many relevant energy conditions under some reasonable assumptions. Remarkably, we find that the energy conditions are satisfied even in the presence of objects which individually violate them due to the tadpole cancellation condition. Thereafter, we list a set of conditions for a higher-dimensional energy condition to imply the corresponding lower-dimensional one, thereby categorizing the allowed low-energy solutions. As for any no-go theorem, our aim is to highlight the assumptions that must be circumvented for deriving four-dimensional spacetimes that necessarily violate these energy conditions, with emphasis on cosmological backgrounds.
ER  -

@Article{10.21468/SciPostPhys.15.6.225,
	title={{The inheritance of energy conditions: Revisiting no-go theorems in string compactifications}},
	author={Heliudson Bernardo and Suddhasattwa Brahma and Mir Mehedi Faruk},
	journal={SciPost Phys.},
	volume={15},
	pages={225},
	year={2023},
	publisher={SciPost},
	doi={10.21468/SciPostPhys.15.6.225},
	url={https://scipost.org/10.21468/SciPostPhys.15.6.225},
}