51社区黑料

Synopsis

Quantum technologies are transitioning from laboratory demonstrations to components that must coexist with large鈥憇cale telecommunication infrastructure. This seminar presents a system鈥憀evel examination of quantum technologies in modern optical networks, with a particular focus on quantum key distribution (QKD), post鈥憅uantum cryptography (PQC), and the emerging role of quantum computing in network optimization.

We examine the physical and engineering constraints that govern real鈥憌orld deployment, including fiber loss, polarization mode dispersion, quantum鈥揷lassical channel coexistence, finite鈥慿ey effects, and performance characterization under operational conditions. Rather than idealized limits, the discussion emphasizes effective key rates, composable security, and integration challenges in meshed, high鈥慶apacity networks.

The talk also explores the limits of current quantum computing approaches for traffic engineering and optimization, highlighting where quantum methods may eventually complement classical techniques鈥攁nd where no clear advantage yet exists. The seminar concludes with a holistic view of quantum technologies as part of a broader networked system, underscoring the need for interdisciplinary collaboration between physics, engineering, and applied cryptography.