Non-Markovianity in High-Dimensional Open Quantum Systems using Next-generation Multicore Optical Fibers

• URL: http://arxiv.org/abs/2308.00094v4
• Date: Thu, 8 Aug 2024 19:40:14 GMT
• Title: Non-Markovianity in High-Dimensional Open Quantum Systems using Next-generation Multicore Optical Fibers
• Authors: Santiago Rojas-Rojas, Daniel Martínez, Kei Sawada, Luciano Pereira, Stephen P. Walborn, Esteban S. Gómez, Nadja K. Bernardes, Gustavo Lima,
• Abstract summary: We study a high-dimensional open quantum system in a multicore optical fiber. We observe a non-Markovian behaviour of the system. A better understanding of phase-noise in multicore fibers will improve several real-world communication protocols.
• Score: 2.686155376921957
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: With the advent of quantum technology, the interest in communication tasks assisted by quantum systems has increased both in academia and industry. Nonetheless, the transmission of a quantum state in real-world scenarios is bounded by environmental noise, so that the quantum channel is an open quantum system. In this work, we study a high-dimensional open quantum system in a multicore optical fiber by characterizing the environmental interaction as quantum operations corresponding to probabilistic phase-flips. The experimental platform is currently state-of-the-art for quantum information processing with multicore fibers. At a given evolution stage we observe a non-Markovian behaviour of the system, which is demonstrated through a proof-of-principle implementation of the Quantum Vault protocol. A better understanding of phase-noise in multicore fibers will improve several real-world communication protocols, since they are a prime candidate to be adopted in future telecom networks.

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