394 citations · 5.1k across the 105 of their papers we have counts for
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The quantum swampland
Ulf H. Danielsson
In this paper we propose a quantum version of the swampland conjecture. We argue that quantum instabilities of de Sitter space discovered using field theoretical methods, are direc…
A new light on the darkest corner of the landscape
Johan Blåbäck, Ulf Danielsson, Giuseppe Dibitetto
Motivated by the recently proposed bounds on the slow-roll parameters for scalar potentials arising from string/M-theory compactifications, a.k.a. the Refined de Sitter Swampland c…
Emergent de Sitter Cosmology from Decaying AdS
Souvik Banerjee, Ulf Danielsson, Giuseppe Dibitetto +2
Recent developments in string compactifications demonstrate obstructions to the simplest constructions of low energy cosmologies with positive vacuum energy. The existence of obsta…
What if string theory has no de Sitter vacua?
Ulf H. Danielsson, Thomas Van Riet
We present a brief overview of attempts to construct de Sitter vacua in string theory and explain how the results of this 20-year endeavor could point to the fact that string theor…