40 citations · 46 across the 3 of their papers we have counts for
3 papers
Transient weak gravity in scalar-tensor theories
Manuel Wittner, Giorgio Laverda, Oliver F. Piattella +1
Sub-horizon perturbations in scalar-tensor theories have been shown to grow generically faster than in uncoupled models due to a positive, additive Yukawa force. In such cases, the…
The -term Problem and other Challenges of Stringy Quintessence
Arthur Hebecker, Torben Skrzypek, Manuel Wittner
We attempt a systematic analysis of string-theoretic quintessence models as an alternative to metastable de Sitter vacua. It appears that, within the boundaries of what is known, l…
Beyond dRGT - a new massive gravity theory?
Manuel Wittner, Frank Könnig, Nima Khosravi +1
It is commonly believed that the dRGT theory is the unique way to describe a massive spin-2 field without ghosts. While dRGT is arguably the most elegant massive gravity theory, it…