Abstract: Apparatus and method for correcting quantum bit states. For example, one embodiment of an apparatus comprises: a phase error evaluator to evaluate a quantum instruction sequence of a quantum program to determine accumulated phase error; phase correction hardware logic to insert one or more phase correction instructions into the quantum instruction sequence to generate a modified quantum instruction sequence to correct the accumulated phase error; and wherein the modified quantum instruction sequence or a translated version thereof is to be executed by a qubit controller chip.