2 papers
quant-ph2026
Metric-induced non-Hermitian physics
Pasquale Marra
I consider the longstanding issue of the hermiticity of the Dirac equation in curved spacetime. Instead of imposing hermiticity by adding ad hoc terms, I renormalize the field by a…
hep-lat2025
Gauge fields induced by curved spacetime
Pasquale Marra
I found an extended duality (triality) between Dirac fermions in periodic spacetime metrics, nonrelativistic fermions in gauge fields (e.g., Harper-Hofstadter model), and in period…