2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/180842The rigged Hilbert space of the algebra of the one-dimensional rectangular barrier potential is constructed. The one-dimensional rectangular potential provides another opportunity to show that the rigged Hilbert space fully accounts for Dirac's bra-ket formalism. The analogy between Dirac's formalism and Fourier methods is pointed out.33 pages in IOP styleQuantum PhysicsHigh Energy Physics - TheoryMathematical PhysicsThe rigged Hilbert space of the algebra of the one-dimensional rectangular barrier potentialtext