Minimal environmental disturbances or material defects can cause qubits to err and drop their quantum information. This method, named decoherence, boundaries the practical life time of the qubit. About the quantum Personal computer, the calculation took less than a thousandth of the next to complete. Every quantum calculation was unreliable https://quantumcomputing12334.ssnblog.com/27772882/helping-the-others-realize-the-advantages-of-quantum-computing