  P\"oschl-Teller-driven solutions for quantum mechanical fluctuations are
triggered off by single scalar field theories obtained through a systematic
perturbative procedure for generating deformed defects. The analytical
properties concerning the quantum fluctuations in one-dimension, zero-mode
states, first- and second- excited states, and energy density profiles are all
obtained from deformed topological and non-topological structures supported by
real scalar fields. Results are firstly derived from an integrated $\lambda
\phi^4$ theory, with corresponding generalizations applied to starting $\lambda
\chi^4$ and {\em sine}-Gordon theories. By focusing our calculations on
structures supported by the $\lambda\phi^4$ theory, the outcome of our study
suggests an exact quantitative correspondence to P\"oschl-Teller-driven
systems. Embedded into the perturbative quantum mechanics framework, such a
correspondence turns into a helpful tool for computing excited states and
continuous mode solutions, as well as their associated energy spectrum, for
quantum fluctuations of perturbatively deformed structures. Perturbative
deformations create distinct physical scenarios in the context of exactly
solvable quantum systems and may also work as an analytical support for
describing novel braneworld universes embedded into a $5$-dimensional gravity
bulks.
