10 citations · 10 across the 1 of their papers we have counts for
6 papers
Eternal inflation and chaotic terminology
Alexander Vilenkin
``Eternal inflation'' is often confused with ``chaotic inflation''. Moreover, the term ``chaotic inflation'' is being used in three different meanings (all of them unrelated to ete…
Quantum cosmology and eternal inflation
Alexander Vilenkin
This contribution consists of two parts. In the first part, I review the tunneling approach to quantum cosmology and comment on the alternative approaches. In the second part, I di…
Superconducting cosmic strings as gamma ray burst engines
V. Berezinsky, B. Hnatyk, A. Vilenkin
Cusps of superconducting strings can serve as GRB engines. A powerful beamed pulse of electromagnetic radiation from a cusp produces a jet of accelerated particles, whose propagati…
Cosmic Defects
Alexander Vilenkin
A (very) brief review of topological defects and their possible cosmic roles. I emphasize in particular that superheavy defects needed for structure formation can peacefully coexis…
Quantum Cosmology and the Constants of Nature
Alexander Vilenkin
In models where the constants of Nature can take more than one set of values, the cosmological wave function describes an ensemble of universes with different values of the con…
The Impossibility of Steady-State Inflation
Arvind Borde, Alexander Vilenkin
Inflation is known to be generically eternal to the future: the false vacuum is thermalized in some regions of space, while inflation continues in other regions. Here, we address t…