  As the partons in a jet propagate through the quark-gluon plasma (QGP)
produced in a heavy-ion collision, they lose energy to, kick, and are kicked by
the medium. The resulting modifications to the parton shower encode information
about the microscopic nature of QGP. The momentum and energy lost by the parton
shower are gained by the medium and, since QGP is a strongly coupled liquid,
this means that the jet excites a wake in the droplet of QGP. After freezeout,
this wake becomes soft hadrons with net momentum in the jet direction meaning
that reconstructed jets include hadrons originating from both the modified
parton shower and its wake. This makes it challenging to find an unambiguous
experimental view of the response of a droplet of QGP to a jet. Recent years
have seen significant advances in the understanding of the substructure of jets
using correlation functions of the energy flux operator. So far, such studies
have focused primarily on the two-point correlator, which serves to identify
the angular scale of the underlying dynamics. Higher-point correlators hold the
promise of mapping out the dynamics themselves. We perform the first study of
the shape-dependent three-point energy-energy-energy correlator in heavy-ion
collisions. Using the Hybrid Model to simulate the interactions of high energy
jets with QGP, we show that hadrons originating from wakes are the dominant
contribution to the three-point correlator in the regime where the three points
are well-separated in angle, forming a roughly equilateral triangle. This
equilateral region of the correlator is far from the region populated by
collinear vacuum emissions, making it a canvas on which jet wakes can be
imaged. Our work is a key step towards the systematic use of energy correlators
to image and unravel the dynamical response of a droplet of QGP to a passing
jet, and motivates many experimental and theoretical studies.
