137 citations · 476 across the 33 of their papers we have counts for
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hep-th2005
Bouncing Universes in String-inspired Gravity
Tirthabir Biswas, Anupam Mazumdar, Warren Siegel
We consider the effects on cosmology of higher-derivative modifications of (effective) gravity that make it asymptotically free without introducing ghosts. The weakening of gravity…
hep-th2005
Conquest of the ghost pyramid of the superstring
Kiyoung Lee, Warren Siegel
We give a new Becchi-Rouet-Stora-Tyutin operator for the superstring. It implies a quadratic gauge-fixed action, and a new gauge-invariant action with first-class constraints. The…