Single photon randomness originating from the symmetric dipole emission pattern of quantum emitters

Quantum random number generation is a key ingredient for quantum cryptography and fundamental optics could advance Monte-Carlo simulations machine learning. An established scheme based on single photons impinging beam splitter. Here, we experimentally demonstrate solely the spontaneous emission process in combination with symmetric profile of dipole aligned orthogonal to laboratory frame. The demonstration builds defect centers hexagonal boron nitride benefits from ability manipulate align directionality. We prove randomness correlated photon detection events making use NIST test suite show that remains two independently emitting centers. can be extended by coherent potential applications solid-state communication at room temperature.