2D-SIPCs breakthrough will be the development and prototyping of a full set of 2DM on-chip quantum components and the scalable integration of these into prototype IQNs. 2D-SIPCs specific objectives include:
• Tuneable and entangled single photon generation (1) Theoretical modelling by DFT calculations and experimental electro-optic characterization of SPEs in 2DMs and their HSs, to investigate optical transitions, selection rules, strain effects, excitonic binding energies, intersubband transitions, and electrically driven single-photon light-emitting devices. (2) Development of large-scale device arrays of spectrally tuneable single- and entangled-photon sources with 2DMs. (3) Integration of entangled-photon devices with Si and SiN photonic circuits. (4) Deterministic implantation of quantum emitters in suspended WSe2, hBN, MoSe2.
• Ultra-fast and non-linear single photon processing (1) Development of a graphene Si and SiN electro-optical modulator, based on electrostatic gating of graphene. (2) Design and development of low loss graphene-based phase modulators on Si and SiN waveguides, exploiting properly biased graphene/graphene capacitors. (3) Demonstration of an on-chip nonlinear logic gate based on photon-photon interactions, in electrically controlled 2MDs SPEs, efficiently coupled to photons into a waveguide.
• Broadband and high temperature single photon detection (1) Demonstration of a SPD using a graphene-based Josephson junction (gJJ) as an ultra-broadband threshold detector for single photons from the visible to THz frequencies. (2) Development of above liquid nitrogen temperature superconducting (SC) nanowire SPDs from the atomic layers of the high-temperature SC BSCCO.
