QuantumFluids: a machine-checked Lean 4 library of quantum-fluid structure, applied to published neutron-scattering work
An open Lean 4 / Mathlib library of 235 machine-checked theorems on the mathematical structure of quantum fluids, with the accompanying paper. Contents. Correctness of the phase-winding algorithm by which Gross-Pitaevskii codes locate quantized vortices, including its exact failure case (a phase step of exactly pi, whe...