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quant-ph2026
Phase-enhanced nonreciprocal photon-phonon conversion via coupled optomechanical cavities
Divya Mishra, Parvendra Kumar
Nonreciprocity, characterized by direction-dependent signal propagation, is fundamental to technologies such as isolators, signal routing, and precision sensing. This letter theore…
quant-ph2026
Quantum Key Distribution with a Negatively Charged Quantum Dot Single-Photon Source
Parvendra Kumar
Various quantum key distribution (QKD) protocols require bright single-photon sources with a very low probability of multiphoton emission. In this work, we investigate single-photo…