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  1. No Access

    Article

    K-x-ray emission of 1.5–20 keV/q Oq+ (q = 3, 5, 6) and Nq+ (q = 3, 5) ions im**ing on nickel surface

    The spectra emitted by highly charged ions, which are abundant in laboratory plasma and stellar systems, cover a wide range of wavelengths from near-infrared to x-rays. Measurements on such spectral lines can ...

    Wei Wang, Zhang-Yong Song, Bing-Zhang Zhang, Xuan Liu… in The European Physical Journal Plus (2022)

  2. No Access

    Article

    Twin-field quantum key distribution over 830-km fibre

    Quantum key distribution (QKD) provides a promising solution for sharing information-theoretic secure keys between remote peers with physics-based protocols. According to the law of quantum physics, the photon...

    Shuang Wang, Zhen-Qiang Yin, De-Yong He, Wei Chen, Rui-Qiang Wang… in Nature Photonics (2022)

  3. No Access

    Article

    Experimental investigation of the no-signalling principle in parity–time symmetric theory using an open quantum system

    The violation of the no-signalling principle — information can be transmitted faster than light — is experimentally investigated using entangled photons. It can be simulated when the parity–time symmetrically ...

    Jian-Shun Tang, Yi-Tao Wang, Shang Yu, De-Yong He, **-Shi Xu… in Nature Photonics (2016)

  4. No Access

    Article

    Experimental demonstration of a quantum key distribution without signal disturbance monitoring

    In existing quantum key distribution protocols, two legitimate peers, Alice and Bob, must monitor the signal disturbance to place a bound on the potential information leakage. However, in the round-robin diffe...

    Shuang Wang, Zhen-Qiang Yin, Wei Chen, De-Yong He, **ao-Tian Song… in Nature Photonics (2015)