Solid-state spin defects in 3D materials have shown remarkable capabilities in quantum sensing and information processing. While these materials are effective, the search for scalable alternatives is ongoing. Two-dimensional materials like hexagonal boron nitride (hBN) are emerging as promising candidates. The negatively charged boron vacancy (VB) in hBN exhibits exceptional room-temperature properties, positioning it as a compelling platform for scalable quantum technologies. This lecture explores recent advances in harnessing VB centers for quantum technologies, focusing on three interconnected pillars: spin control, strain-mediated coupling, and decoherence mitigation. First, we demonstrate efficient nuclear spin hyperpolarization using active spin driving and the Holstein-Primakoff transformation. This enables the initialization of large-scale quantum simulators from thermal spin baths. Second, we propose a strain-induced coupling scheme in hBN nanoribbons. This scheme demonstrates robust room-temperature entanglement and Dicke-Ising simulations. Finally, we investigate the decoherence dynamics of VB centers, focusing on the interplay between dipolar hyperfine interactions and spin-phonon coupling. Our findings provide a foundation for developing practical quantum devices that leverage the advantages of van der Waals materials.


Venue: Room D, 3rd Floor, Farmanieh Building, IPM
Link: https://vmeeting2.ipm.ir/b/nan-gkn-wmh-exh