# Fate of the false vacuum in string-inspired nonlocal field theory

@article{Ghoshal2022FateOT, title={Fate of the false vacuum in string-inspired nonlocal field theory}, author={Anish Ghoshal and Florian Nortier}, journal={Journal of Cosmology and Astroparticle Physics}, year={2022}, volume={2022} }

In this article, we study Coleman bounce in weakly nonlocal theories which are motivated from string field theory. The kinetic term is extended via an infinite series of high-order derivatives, which comes into play at an energy scale M, without introducing any new states or ghosts in the mass spectrum. We calculate the bubble nucleation in thin-wall approximation, treating the system in semi-classical manner. We find that the effect of nonlocal scale M in the theory is to suppress the vacuum…

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