Cosmological constant problem

Exponentially Small Cosmological Constant in String Theory
We construct a supersymmetric vacuum of string theory in which the magnitude of the vacuum energy is $< 10^{-123}$ in Planck units. …
Mehmet Demirtas, Manki Kim, Liam McAllister, Jakob Moritz, Andres Rios-Tascon
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Exponentially Small Cosmological Constant in String Theory
Small cosmological constants in string theory
We construct supersymmetric AdS${}_4$ vacua of type IIB string theory in compactifications on orientifolds of Calabi-Yau threefold …
Mehmet Demirtas, Manki Kim, Liam McAllister, Jakob Moritz, Andres Rios-Tascon
PDF Cite DOI INSPIRE ArXiv
Small cosmological constants in string theory