438 citations · 5.3k across the 180 of their papers we have counts for
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Cosmic Rays from Cosmic Strings with Condensates
Tanmay Vachaspati
We re-visit the production of cosmic rays by cusps on cosmic strings. If a scalar field (``Higgs'') has a linear interaction with the string world-sheet, such as would occur if the…
Aharonov-Bohm Radiation
Katherine Jones-Smith, Harsh Mathur, Tanmay Vachaspati
A solenoid oscillating in vacuum will pair produce charged particles due to the Aharonov-Bohm (AB) interaction. We calculate the radiation pattern and power emitted for charged sca…
Island Cosmology
Sourish Dutta, Tanmay Vachaspati
If the observed dark energy is a cosmological constant, the canonical state of the universe is de Sitter spacetime. In such a spacetime, quantum fluctuations that violate the null…
Dark Strings
Tanmay Vachaspati
Recent astrophysical observations have motivated novel theoretical models of the dark matter sector. A class of such models predicts the existence of GeV scale cosmic strings that…