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gr-qc2026
Geometric origin of intrinsic rigidity for extremal horizons
Wojciech Kamiński, Adam Szereszewski
Our work clarifies the origin of enhanced symmetry of near horizon geometries. We relate this property to an existence of specific foliation by non-expanding horizons. The existenc…
quant-ph2026
Identical, independent quantum weak measurements violate objective realism
Tomasz Rybotycki, Tomasz Białecki, Josep Batle +4
We demonstrate violation of objective realism in quantum world using unconstrained weak measurements. Instead of limited Leggett-Garg approach with artificial bounds on the observe…
math-ph2026
Dispersionless Hirota system and hidden symmetries of heavenly equation
Andriy Panasyuk, Adam Szereszewski
In 2021 Konopelchenko, Schief and Szereszewski observed that solutions of 4D dispersionless Hirota system also solve the general heavenly equation describing self-dual vacuum Einst…