34 citations · 48 across the 5 of their papers we have counts for
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gr-qc2003★ 4 cited
Propagating phase boundaries as sonic horizons
Tanmay Vachaspati
If certain conditions are met, a propagating phase boundary can be a sonic horizon. Sonic Hawking radiation from such a phase boundary is expected in the quantum theory. The Hawkin…
astro-ph2003★ 6 cited
Eternal inflation and energy conditions in de Sitter spacetime
Tanmay Vachaspati
Eternal inflation is shown to require violations of the Null Energy Condition (NEC) on superhorizon scales. With light scalar fields as the matter sources in a de Sitter background…
astro-ph2003★ 4 cited
A post-WMAP perspective on inflation
Arthur Lue, Glenn D. Starkman, Tanmay Vachaspati
Recent results from the Wilkinson Microwave Anisotropy Probe have been called a corroboration, or even a confirmation, of inflation. Yet, the results include features that require,…