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    Article

    Renormalization of magic and quantum phase transition in spin models

    The interplay of quantum information theory and condensed matter physics has generated fruitful results, which promote our understanding of quantum phase transition. Magic, as a crucial resource in fault-toler...

    Jiayu He, Shuangshuang Fu in Quantum Information Processing (2023)

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    Article

    Dynamics of atomic magic in the Jaynes–Cummings model

    Magic (non-stabilizerness), as a basic quantum resource in the stabilizer formalism of quantum computation, has attracted considerable attention over the last two decades. Its significance and applications lie...

    Fu Shuangshuang, Li **aohui, Luo Shunlong in Quantum Information Processing (2022)

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    Article

    Dynamics of field nonclassicality in the Jaynes–Cummings model

    Employing an informational quantifier for nonclassicality of bosonic field based on the Wigner–Yanase skew information, we investigate the dynamics of field nonclassicality in the Jaynes–Cummings model evolvin...

    Shuangshuang Fu, Shunlong Luo, Yue Zhang in Quantum Information Processing (2021)

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    Article

    Skew information-based uncertainty relations for quantum channels

    The most general quantum measurements in quantum mechanics are described by quantum channels (quantum operations), and intrinsic uncertainties emerge from the state–channel interaction. In this paper, we study...

    Shuangshuang Fu, Yuan Sun, Shunlong Luo in Quantum Information Processing (2019)

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    Article

    Quantum criticality from Fisher information

    Quantum phase transition is primarily characterized by a qualitative sudden change in the ground state of a quantum system when an external or internal parameter of the Hamiltonian is continuously varied. Inve...

    Hongting Song, Shunlong Luo, Shuangshuang Fu in Quantum Information Processing (2017)