  Fermion-exciton condensates (FECs) -- computationally and theoretically
predicted states that simultaneously exhibit the character of superconducting
states and exciton condensates -- are novel quantum states whose properties may
involve a hybridization of superconductivity and the dissipationless flow of
energy. Here, we exploit prior investigations of superconducting states and
exciton condensates on quantum devices to identify a tuneable quantum state
preparation entangling the wave functions of the individual condensate states.
Utilizing this state preparation, we prepare a variety of FEC states on quantum
computers -- realizing strongly correlated FEC states on current, noisy
intermediate-scale quantum devices -- and verify the presence of the dual
condensate via postmeasurement analysis. This confirmation of the previously
predicted condensate state on quantum devices as well as the form of its wave
function motivates further theoretical and experimental exploration of the
properties, applications, and stability of FECs.
