Generation of genuine χ-type four-particle entangled state of superconducting artificial atoms with broken symmetry

2014/12/11 by Chun-Ling Leng, Qi Guo, Leng, Chun-Ling +5
Computer Science · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #Mechanical and Optical Resonators #Quantum Information and Cryptography #Quantum Physics (quant-ph)

paper · pdf · doi:10.48550/arxiv.1412.3543

openalex publication_date 2014/12/11 · openalex created_date 2024/04/10 · openalex updated_date 2026/07/28

Abstract

We propose a scheme for generating a genuine χ-type four-particle entangled state of superconducting artificial atoms with broken symmetry by using one-dimensional transmission line resonator as a data bus. The Δ-type three-level artificial atom we use in the scheme is different from natural atom and has cyclic transitions. After suitable interaction time and simple operations, the desired entangled state can be obtained. Since artificial atomic excited states and photonic states are adiabatically eliminated, our scheme is robust against the spontaneous emissions of artificial atoms and the decays of transmission line resonator.

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