2 papers
math-ph2026
Lattice Green's function of the hyperkagome lattice: modular uniformization at level 30 from an orthogonal differential Galois group
Bryan Nasr, Jean-Marie Maillard
The lattice Green's functions of the cubic lattices are classical: each is a symmetric square of a second-order operator, with a closed form in complete elliptic integrals. The hyp…
quant-ph2026
A Margolus-Levitin speed limit for observables: mean energy bounds expectation-value change quadratically
Bryan Nasr
The Mandelstam-Tamm and Margolus-Levitin quantum speed limits bound how fast a state evolves, using the energy variance and the mean energy above the ground state. Speed limits on…