I am searching for physical realizations of universal logic operations (phase rotation, CNOT, Hadamard) in single-dot excitionic qubits. Phase rotations are easy to implement with sinusoidal electric fields but my literature search for CNOT and Hadamard gates runs dry. I can find them in spin state qubits or excitonic double-dot qubits. It seems like excitons are the readheaded step-child in the world of quantum computing theses days. Have these logic gates ever been implemented in this particular type of qubit?