Renormalization of magic and quantum phase transition in spin models

He, Jiayu; Fu, Shuangshuang

doi:10.1007/s11128-023-03905-6

Quantum Inf Process

2023

DOI: 10.1007/s11128-023-03905-6

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Renormalization of magic and quantum phase transition in spin models

Jiayu He

Shuangshuang Fu

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2024

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Cited by 3 publications

References 36 publications

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Entropic uncertainty relations and quantum coherence in the two-dimensional XXZ spin model with Dzyaloshinskii–Moriya interaction

Fang,

Zhang,

Liu

2024

Physica A: Statistical Mechanics and its Applications

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Entropic uncertainty relations and quantum coherence in the two-dimensional XXZ spin model with Dzyaloshinskii–Moriya interaction

Fang,

Zhang,

Liu

2024

Physica A: Statistical Mechanics and its Applications

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Multipartite entanglement serves as a faithful detector for quantum phase transitions

Li,

Zhou,

Zhang

et al. 2024

New J. Phys.

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We investigate quantum phase transitions in various spin chain systems using the multipartite entanglement measure $\tau_{SEF}$based on the monogamy inequality of squared entanglement of formation. Our results demonstrate that $\tau_{SEF}$ is moreeffective and reliable than bipartite entanglement or bipartite correlation measures such as entanglement of formation, von Neumannentropy, and quantum discord in characterizing quantum phase transitions. $\tau_{SEF}$ not only detects critical points that maygo unnoticed by other detectors but also avoids the issue of singularity at non-critical points encountered by other measures.Furthermore, by applying $\tau_{SEF}$, we have obtained the phase diagram for the XY spin chain with three and four interactions and discovered a new quantum phase.

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Magic behaviors in non-Markovian environment

Huang,

Zou,

Rong

et al. 2024

Mod. Phys. Lett. A

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Magic as an essential resource in fault-tolerant quantum computation may shed insight into quantum information processing of open quantum system. In this work, we study the dynamics of magic for atom system immersed in non-Markovian reservoir. It is found that magic decay process can be delayed and adjusted by the strength of classical driving field and non-Markovian memory effect. In addition, it is shown that the magic state is less susceptible to decay the process of system-environment coupling than stabilizer state, and for two atoms coupling to two independent reservoirs, magic can be generated. The results may be beneficial for theory and experiment of quantum computation and information in open quantum system.

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Renormalization of magic and quantum phase transition in spin models

Cited by 3 publications

References 36 publications

Entropic uncertainty relations and quantum coherence in the two-dimensional XXZ spin model with Dzyaloshinskii–Moriya interaction

Entropic uncertainty relations and quantum coherence in the two-dimensional XXZ spin model with Dzyaloshinskii–Moriya interaction

Multipartite entanglement serves as a faithful detector for quantum phase transitions

Magic behaviors in non-Markovian environment

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