Abstract: The present disclosure provides method and system, which use multiple of excitonic BEC(s) and/or excitonic matter-wave(s) and/or excitonic superfluid(s) as a platform to generate multiple (from a few to even millions or more) long-lived Qubits in any conceivable multi-dimensional hybrid nano structure(s), mostly using semiconductor material(s) and/or device structure(s) at any temperature in between 0-500K, and that can sustain any quantum coherence for a much longer time scales of microseconds or milliseconds or even more, but not limited to these time scales for any conceivable faster device operation(s) as well. The macroscopic quantum states of the generated Qubits are easily controllable with applied voltage(s) (dc and/or ac) and/or electrical power, and/or light beam(s), and are easily integrated with semiconductor fabrication techniques for quicker and wider adaptation of Quantum technologies.