Quantum science has achieved multiple breakthroughs across communication, material properties, and fundamental physics. Experimental demonstration of composable key distribution using discrete-modulated continuous variable quantum cryptography advances secure quantum networks resilient against powerful computational attacks. Investigations into non-Hermitian quantum walks reveal self-normal and biorthogonal phase transitions, enriching understanding of quantum dynamics beyond Hermitian systems. Furthermore, selective mode excitation enables long-lived ghost phonon polaritons, potentially impacting nanophotonic and quantum information applications. These developments collectively push the frontier of quantum technologies and their implementation capabilities.