Quantum Toffoli gate in hybrid optomechanical system

Peng, Lei; Zhang, Yang; Cheng, Jiong; Zhang, Wenzhao

doi:10.1016/j.rinp.2022.105338

Cited by 3 publications

(2 citation statements)

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“…A very effective way to construct these CPFGs are using the quantum Kerr effect, which has been extensively studied in optomechanical systems, where the system can exhibit equivalent Kerr nonlinear effects under appropriate parameters [37,38,56,57]. Using this effect, by choosing the input and output time, we can achieve the photon-phonon and phonon-phonon quantum CPFG we need.…”

Section: Effective Hamiltonian and Quantum Logic Gate Realizationmentioning

confidence: 99%

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Photon-phonon quantum cloning in optomechanical system

Mu,

Wang,

Zhang

2023

Phys. Scr.

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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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Section: Effective Hamiltonian and Quantum Logic Gate Realizationmentioning

confidence: 99%

“…With these quantum behaviors, OMS can serve as a platform for quantum information processing. It exhibits Kerr nonlinear effects under certain parameter conditions and can further be used as quantum controlled gates, transmission control devices, etc., and even for the construction of fault-tolerant quantum computing [37,38].…”

Section: Introductionmentioning

confidence: 99%