Cosmic Dossiers — Archival Monographs on Frontier Cosmic Puzzles

Fundamental Physics HALF-CENTURY PARADOX

The Black Hole Information Paradox: Unitary Evaporation & Entanglement Islands

“Is quantum information destroyed when a black hole evaporates, or does the Hawking radiation purify in accordance with the Page curve?”

In 1974, Stephen Hawking demonstrated that quantum field fluctuations near an event horizon cause black holes to emit strictly thermal radiation, leading to complete evaporation. However, thermal emission destroys the quantum state of infalling matter, violating the fundamental principle of unitarity in quantum mechanics. The paradox was dramatically deepened in 2012 by the AMPS firewall argument and transformed in 2019 by quantum extremal surfaces and "entanglement islands", demonstrating how spacetime geometry emerges from quantum information.

Fundamental Physics UNSOLVED GENESIS

Origin & Amplification of Cosmic Magnetic Fields: Primordial Seeds vs. Dynamos

“Were cosmic magnetic fields seeded during inflationary phase transitions or generated astrophysically in the first stars?”

Magnetic fields of microgauss (µG) strength are ubiquitous across galaxies, spiral arms, and massive galaxy clusters. While turbulent turbulent dynamo mechanisms can exponentially amplify weak seed fields during structure formation, dynamos require an initial non-zero "seed" magnetic field. The origin of this seed field—whether produced by cosmological phase transitions in the early universe (inflationary or electroweak magnetogenesis) or generated locally by astrophysical plasma mechanisms (Biermann batteries in the first stars)—remains an open puzzle. Observations of TeV blazar halo non-detections with the Fermi and H.E.S.S. telescopes indicate an all-pervading intergalactic magnetic field lower limit of B ≥ 10⁻¹⁶ G across cosmic voids.