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    Article

    Decoherence factor in quantum phase transition

    As a fundamental quantity in quantum dynamics, decoherence factor reflects the influence on the system brought by the environment. In this work, we mainly investigate the dynamical behavior of decoherence fact...

    Hongting Song, Yu Pan, Yuanyuan Mao 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)