Photon-phonon quantum cloning in optomechanical system

• URL: http://arxiv.org/abs/2302.05643v1
• Date: Sat, 11 Feb 2023 10:09:53 GMT
• Title: Photon-phonon quantum cloning in optomechanical system
• Authors: Qingxia Mu, Ting Wang, Jiong Cheng, and Wen-Zhao Zhang
• Abstract summary: cloning of flying bits for further processing from the solid-state quantum bits in storage is an operation frequently used in quantum information processing. We propose a high-fidelity and controllable quantum cloning scheme between solid bits and flying bits.
• Score: 5.317893030884531
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Quantum cloning is an essential operation in quantum information and quantum computing. Similar to the `copy' operation in classical computing, the cloning of flying bits for further processing from the solid-state quantum bits in storage is an operation frequently used in quantum information processing. Here we propose a high-fidelity and controllable quantum cloning scheme between solid bits and flying bits. In order to overcome the obstacles from the no-cloning theorem and the weak phonon-photon interaction, we introduce a hybrid optomechanical system that performs both the probabilistic cloning and deterministic cloning closed to the theoretical optimal limit with the help of designed driving pulse in the presence of dissipation. In addition, our scheme allows a highly tunable switching between two cloning methods, namely the probabilistic and deterministic cloning, by simply changing the input laser pulse. This provides a promising platform for experimental executability.

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