Generalized su(1,1) algebra and the construction of nonlinear coherent states for P\"oschl-Teller potential

TL;DR

This paper generalizes the su(1,1) algebra using a function of its generator, constructs associated nonlinear coherent states for the P"oschl-Teller potential, and compares their properties with GHA coherent states.

Contribution

It introduces a new generalized su(1,1) algebra framework and constructs nonlinear coherent states for the P"oschl-Teller potential, expanding the algebraic approach to quantum states.

Findings

Generalized su(1,1) algebra depends on a function of one generator.

Constructed Barut-Girardello coherent states for P"oschl-Teller potential.

Coherent states are highly localized and exhibit specific time evolution properties.

Abstract

We introduce a generalization structure of the su(1,1) algebra which depends on a function of one generator of the algebra, f(H). Following the same ideas developed to the generalized Heisenberg algebra (GHA) and to the generalized su(2), we show that a symmetry is present in the sequence of eigenvalues of one generator of the algebra. Then, we construct the Barut-Girardello coherent states associated with the generalized su(1,1) algebra for a particle in a P\"oschl-Teller potential. Furthermore, we compare the time evolution of the uncertainty relation of the constructed coherent states with that of GHA coherent states. The generalized su(1,1) coherent states are very localized.