Experimental demonstration of high-dimensional photonic spatial entanglement between multi-core optical fibers
Hee Jung Lee, Sang-Kyung Choi, Hee Su Park
TL;DR
This paper experimentally demonstrates the transmission and measurement of high-dimensional spatial entanglement between multi-core optical fibers, showcasing the potential for high-capacity quantum communication.
Contribution
It is the first to experimentally realize high-dimensional entanglement transmission through multi-core fibers with quantum state analysis.
Findings
Successfully transmitted four-dimensional entangled states
Verified non-locality via Bell inequality violations
Demonstrated high-dimensional quantum state tomography
Abstract
Fiber transport of multi-dimensional photonic qudits promises high information capacity per photon without space restriction. This work experimentally demonstrates transmission of spatial qudits through multi-core optical fibers and measurement of the entanglement between two fibers with quantum state analyzers, each composed of a spatial light modulator and a single-mode fiber. Quantum state tomography reconstructs the four-dimension entangled state that verifies the non-locality through concurrences in two-dimensional subspaces and a high-dimensional Bell-type CGLMP inequality.
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Taxonomy
TopicsQuantum Information and Cryptography · Quantum Mechanics and Applications · Quantum Computing Algorithms and Architecture