127 citations · 1.2k across the 69 of their papers we have counts for
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Can free strings propagate across plane wave singularities?
Ben Craps, Frederik De Roo, Oleg Evnin
We study free string propagation in families of plane wave geometries developing strong scale-invariant singularities in certain limits. We relate the singular limit of the evoluti…
On discrete features of the wave equation in singular pp-wave backgrounds
Oleg Evnin, Timothy Nguyen
We analyze the wave equation in families of pp-wave geometries developing strong localized scale-invariant singularities in certain limits. For both cases of well-localized pp-wave…
Notes on quantum evolution across singularities
Oleg Evnin
In a number of model contexts, evolution across space-time singularities (reminiscent of the cosmological singularities) involves time-dependent quantum Hamiltonians developing a s…
Quantum evolution across singularities: the case of geometrical resolutions
Ben Craps, Frederik De Roo, Oleg Evnin
We continue the study of time-dependent Hamiltonians with an isolated singularity in their time dependence, describing propagation on singular space-times. In previous work, two of…