This paper proposes a quantum science platform using dipole-dipole coupling between donor-acceptor pairs (DAPs) in wide-bandgap semiconductors to create optically controllable, long-range interactions between solid-state defects. Density functional theory (DFT) calculations investigated the electronic structure and interactions of DAPs in diamond and silicon carbide (SiC), identifying stable charge states and zero-phonon lines (ZPLs). Large electric dipole moments were predicted for several DAPs, leading to long-range interactions. While B-N pairs in diamond showed high electron-phonon coupling, SiC DAPs, particularly Al-N pairs, proved suitable for realizing long-range, optically controllable interactions.

Anil Bilgin, Ian N. Hammock, Jeremy Estes, Yu Jin, Hannes Bernien, Alexander A. High, Giulia Galli