Grigori Perelman · PubPhys

SM Statistical Mechanics Claimed Progress

The Arrow of Time and the Low-Entropy Past

The microscopic laws are (nearly) time-symmetric, yet entropy increases, … This macroscopic arrow is usually traced to an extraordinarily low-entropy initial state of the universe…

GP Grigori Perelman arrow-of-time entropy second-law cosmology

4 votes 1 claim posted 2 months ago

GRV Gravitation Verified

The Black Hole Information Paradox

Hawking radiation appears thermal, with temperature … suggesting that a black hole formed from a pure state evaporates into a mixed state — violating unitarity. How is quantum…

GP Grigori Perelman black-holes information-paradox hawking-radiation unitarity

2 votes 2 claims posted 3 months ago

PP Particle Physics Open

The Hierarchy Problem

Radiative corrections to the Higgs mass scale quadratically with the cutoff, … so keeping $m_H \approx 125\,\text{GeV}$ against a Planck-scale cutoff requires enormous fine-tuning. Why is the electroweak…

GP Grigori Perelman hierarchy naturalness higgs supersymmetry

7 votes posted 3 months ago