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Deterministic two-photon controlled phase gate by exploiting nonlinear pi-phase shift in photonic molecule generations
Author(s): Zihao Chen; Yao Zhou; Jung-Tsung Shen
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Paper Abstract

To resolve the intrinsic trade-off between the deterministic nature and scalability of controlled phase gate implementation in the linear optics regime, we propose a novel deterministic two-photon controlled phase gate scheme in chiral quantum nanophotonics. The essential ingredient here is that, a non-linear π-phase shift is imprinted during the photonic molecule generations. On one hand, the gate operates in a deterministic way without the assistance of probabilistic ancilla qubit measurement. On the other hand, the gate implementation is of low complexity to be highly scalable. To date, the chiral coupling is readily underpinned by the advent of directional emission technique. Potential implementation platforms include QD, superconducting qubit, Rydberg atom, or N-V center that is coupled to a PhC waveguide, transmission line, or optical fiber.

Paper Details

Date Published: 4 March 2019
PDF: 9 pages
Proc. SPIE 10933, Advances in Photonics of Quantum Computing, Memory, and Communication XII, 109330C (4 March 2019); doi: 10.1117/12.2517035
Show Author Affiliations
Zihao Chen, Washington Univ. in St. Louis (United States)
Yao Zhou, Washington Univ. in St. Louis (United States)
Jung-Tsung Shen, Washington Univ. in St. Louis (United States)


Published in SPIE Proceedings Vol. 10933:
Advances in Photonics of Quantum Computing, Memory, and Communication XII
Philip R. Hemmer; Alan L. Migdall; Zameer Ul Hasan, Editor(s)

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