Discord-Enabled Teleportation-Inspired Optical Imaging at a Distance
Zilin Chen, Weiqian Shu, Xiaodong Qiu, Yangjian Cai, and Lixiang Chen

TL;DR
This paper introduces a classical optical imaging method inspired by quantum teleportation, using pseudo-thermal light and sum-frequency generation to achieve non-local imaging without entanglement.
Contribution
It demonstrates a teleportation-inspired imaging technique utilizing classical correlations and quantum discord, expanding quantum-inspired methods to classical optics.
Findings
Successful imaging of characters, diagrams, and orbital angular momentum modes.
Better coherence leads to lower image contrast.
Quantum discord enables non-local imaging without entanglement.
Abstract
In quantum teleportation, a pair of entangled photons are prerequisite to serve as the quantum channel for quantum state transfer distantly. Here, we report a new strategy of quantum-teleportation-inspired classical optical imaging, which also works non-locally at a distance; however, only a classically correlated light source is used instead of entanglement. In our experiment, we explore the pseudo-thermal light source to offer the teleportation-like channel and employ the sum-frequency generation to perform the Bell-like state measurement. We successfully demonstrate the teleportation-inspired optical imaging of simple characters, Taiji diagram, and the superposition of orbital angular momentum modes. Moreover, we experimentally observe that a better coherence of pseudo-thermal light will result in a lower contrast of the formed images, and thus revealing that non-zero quantum discord…
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Taxonomy
TopicsQuantum Information and Cryptography · Random lasers and scattering media · Orbital Angular Momentum in Optics
