✉news SciencePhysics first seen 7 h ago, last 12 min ago, peak #20
Poltergeist mechanism boosts scalar-induced gravitational waves
Original: Poltergeist mechanism: Enhancement of scalar-induced gravitational waves with early matter-dominated era
Physicists describe a 'poltergeist mechanism' that amplifies scalar-induced gravitational waves when the early universe passed through a matter-dominated era. The proposed effect would make these ripples in spacetime, potentially generated by primordial fluctuations, far more observable, offering a new window into the universe's first moments and the composition of dark matter.
Why now: New theoretical work suggests a way to make primordial gravitational waves detectable, exciting cosmologists.
APSscalar-induced gravitational wavesearly universe cosmology
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- Poltergeist mechanism: Enhancement of scalar-induced gravitational waves with early matter-dominated era · APS Journals
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