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arXiv · 2205.00088

Classical Optical Analogue of Quantum Discord

Jacob M. Leamer·Wenlei Zhang·Nicholas J. Savino·Ravi K. Saripalli·Sanjaya Lohani·Ryan T. Glasser·Denys I. Bondar
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Abstract

Quantum discord has been shown to be a resource for quantum advantage in addition to quantum entanglement. While many experiments have demonstrated classical analogies of entanglement, none have done so for discord. We present a proof-of-concept demonstration for creating a classical analogue of quantum discord using classical light that takes advantage of the analogy between the state of two qubits and the spatial modes of a Laguerre-Gauss beam. We demonstrate the validity of this approach by comparing the intensity profiles of theoretical simulations to experimental results for different values of discord. Such a classical analogue of quantum discord may provide further insight in understanding and development of quantum information technologies that make use of discord.

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Jacob M. Leamer, Wenlei Zhang, Nicholas J. Savino, Ravi K. Saripalli, Sanjaya Lohani, Ryan T. Glasser, Denys I. Bondar. 2022-04-29. Classical Optical Analogue of Quantum Discord. https://doi.org/10.1140/epjs%2Fs11734-023-00988-1

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