195 citations · 1.1k across the 29 of their papers we have counts for
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gr-qc2002★ 15 cited
Particle creation in a tunneling universe
J. Hong, A. Vilenkin, S. Winitzki
An expanding closed universe filled with radiation can either recollapse or tunnel to the regime of unbounded expansion, if the cosmological constant is nonzero. We re-examine the…
astro-ph2002★ 7 cited
Signatures of primordial helicity in the CMBR
Levon Pogosian, Tanmay Vachaspati, Serge Winitzki
We have studied ways in which helical primordial magnetic fields could be constrained by measurements of the cosmic microwave background radiation (CMBR). If there were helical flo…