High-dimensional quantum states have already settled their advantages in different quantum technology applications. However, their reliable transmission in fiber links remains an open challenge that must be addressed to boost their application, e.g. in the future quantum internet. Here, we prove how path encoded high-dimensional quantum states can be reliably transmitted over a 2 km long multicore fiber, taking advantage of a phase-locked loop system guaranteeing a stable interferometric detection.
|Journal||IEEE Journal of Selected Topics in Quantum Electronics|
|Number of pages||8|
|Publication status||Published - 1 Jul 2020|
- High-dimensional path encoding
- Multicore fiber
- Quantum communication
- Quantum key distribution