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Superconducting Qubits

Hybrid quantum gate and entanglement between a "stationary" photonic qubit and a flying optical state via a giant cross Kerr nonlinear effect

arXiv
Authors: Keyu Xia, Jason Twamley

Year

2016

Paper ID

43003

Status

Preprint

Abstract Read

~2 min

Abstract Words

105

Citations

N/A

Abstract

Quantum information processing with hybrid protocols making use of discrete- and continuous-variable currently attracts of great interest because of its promising applications in scalable quantum computer and distant quantum network. By inducing a giant cross-Kerr nonlinearity between two cavities, we propose a general protocol for hybrid quantum gate and quantum entanglement with high fidelity between a stationary, discrete photonic qubit and a flying photonic state. Interestingly, our protocol can be used to conduct a controlled-Z quantum gate between a stationary microwave photon stored in a slowly-decaying microwave cavity and a flying optical photon, and therefore enable to build quantum network for distant superconducting quantum circuits.

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  • Quantum information processing with hybrid protocols making use of discrete- and continuous-variable currently attracts of great interest because of its promising applications...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1610.03556 [2] arXiv https://arxiv.org/abs/1610.03556 [3] Publisher https://arxiv.org/abs/1610.03556

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