1results about How to "High phase stability" patented technology

The invention discloses a quantum remote cloning method and system based on an integrated photon chip, and the method comprises the steps: dividing pump light into two paths, and respectively coupling the two paths to enter a transmitting end chip and a receiving end chip; idle photons and unknown quantum state photons to be cloned are generated in the sending end chip; photons C1, C2 and P are obtained in the receiving end chip, and the obtained photon P is coupled to the sending end chip; in a sending end chip, unitary transformation of phase adjustment or basis vector transformation is carried out on unknown quantum state photons to be cloned, X0 and X1 are obtained, and on-chip Bell state measurement is carried out on X0, X1 and P after X0 passes through a thermal modulation phase shifter; according to an on-chip Bell state measurement result, information of an unknown quantum state X to be cloned is non-locally distributed to photons C1 and C2 on a receiving end chip, and two optimal symmetric cloning states are obtained by taking the photons C1 and C2 on the offset receiving end chip.