  Mirror maps play an important role in studying supersymmetric gauge theories.
In these theories the dynamics is often encoded in an algebraic curve where two
sets of periods enjoy the symplectic structure. The A-periods contribute to
redefinitions of chemical potentials known as mirror maps. Using the
quantization of the $D_5$ del Pezzo geometry, which enjoys the symmetry of the
$D_5$ Weyl group, we are able to identify clearly the group-theoretical
structure and the multi-covering structure for the mirror map. With the
structures, we can apply the mirror map to superconformal Chern-Simons theories
describing the worldvolume of multiple M2-branes on various backgrounds, where
we find that the redefinition of the chemical potential is obtained directly
from the mirror map. Besides, we have interesting observations for the mirror
map: The representations appearing in the quantum mirror map are the same as
those appearing in the BPS indices except for the trivial case of degree 1 and
the coefficients are all integers.
