| 摘要 |
The invention relates to an entangled photon pair source comprising a quantum emitter (BQ) that has a ground state (0), two degenerate states (X) that have one elementary excitation and different spins, and a state (XX) having two elementary excitations. Said entangled photon pair source is characterized in that it also comprises a first optical cavity (µP1), wherein said quantum emitter is inserted, and a second optical cavity (µP2) that is coupled with said first cavity. The geometry of the first and second cavity, and the force of the coupling thereof, are selected such that the whole formed by both coupled cavities has a first pair (AL1+, AL1-) of polarization-degenerate modes, that are resonant with the transitions between the state having two elementary excitations and the two degenerate states having one elementary excitation from the quantum emitter, and a second pair (L2+, L2-) of polarization-degenerate modes that are resonant with the transitions between said degenerate states, having one elementary excitation, and the ground state. The invention also relates a method for manufacturing such a source. |
