4 papers
High fidelity preservation of photonic hyperentanglement in a free-space optical delay line
Yu Guo, Arya Chowdhury, Pranay Tiwari +3
Photonic hyperentanglement enables increased information capacity and enhanced functionality for quantum communication and networking. However, synchronization of hyperentangled ph…
Terrestrial readiness campaign for space-to-ground quantum communications with a space-qualified entangled photon-pair system
Gianluca De Santis, Jia Boon Chin, Srihari Sivasankaran +8
Realizing a global quantum internet relies on the deployment of robust satellite-based entanglement distribution links. While pioneering demonstrations have established the feasibi…
Highly Efficient and Broadband Optical Delay Line towards a Quantum Memory
Yu Guo, Anindya Banerji, Jia Boon Chin +2
We demonstrate a high-efficiency, free space optical delay line utilizing a nested multipass cell architecture. This design supports extended optical paths with low loss, aided by…
Highly nondegenerate polarization-entangled photon pairs produced through noncritical phasematching in single-domain KTiOPO
Jia Boon Chin, Diane Prato, Alexander Ling
Photon-pair sources are useful for entanglement distribution. The most mature of these are spontaneous parametric downconversion (SPDC) sources, most of which achieve phasematching…