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Updated: Aug 19, 2025

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
Published on: August 12, 2013
Detection of early-universe gravitational-wave signatures and fundamental physics
Robert Caldwell1, Yanou Cui2, Huai-Ke Guo3
1Department of Physics and Astronomy, Dartmouth College, Hanover, NH 03755 USA.
Abstract:
Detection of a gravitational-wave signal of non-astrophysical origin would be a landmark discovery, potentially providing a significant clue to some of our most basic, big-picture scientific questions about the Universe. In this white paper, we survey the leading early-Universe mechanisms that may produce a detectable signal-including inflation, phase transitions, topological defects, as well as primordial black holes-and highlight the connections to fundamental physics. We review the complementarity with collider searches for new physics, and multimessenger probes of the large-scale structure of the Universe.
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