2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/211403The quantum mechanical brachistochrone system with PT-symmetric Hamiltonian is Naimark dilated and reinterpreted as subsystem of a Hermitian system in a higher-dimensional Hilbert space. This opens a way to a direct experimental implementation of the recently hypothesized PT-symmetric ultra-fast brachistochrone regime of [C. M. Bender et al, Phys. Rev. Lett. {\bf 98}, 040403 (2007)] in an entangled two-spin system.4 pagesQuantum PhysicsHigh Energy Physics - TheoryMathematical Physicstext