GP / Gaopei Pan

THEORETICAL CONDENSED MATTER PHYSICS

Gaopei Pan潘高培

Quantum matter through models and computation.

I am a theoretical condensed matter physicist studying strongly correlated quantum matter using quantum Monte Carlo. I received my Ph.D. under the supervision of Prof. Zi Yang Meng and am currently a visiting researcher in Prof. Fakher F. Assaad’s group at University of Würzburg. In November 2026, I will join Prof. Xueyang Song’s group at Hong Kong University of Science and Technology (HKUST) as a postdoctoral researcher.

Explore publications ↗ Curriculum vitae →
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RESEARCH OUTPUT

Selected publications

All 27 publications ↗
  1. 01

    Quantum Monte Carlo studies of U(1) lattice gauge models of Kondo breakdown

    Uses a U(1) lattice gauge model to study how heavy-fermion quasiparticles lose coherence, identifying spectral and transport signatures of Kondo breakdown.

    Gaopei Pan, Fakher F. Assaad

    Phys. Rev. Lett. (accepted, 2026) arXiv:2512.17801
    Cite 
    @article{Pan2026251217801,
  author = {Pan, Gaopei and Assaad, Fakher F.},
  title = {{Quantum Monte Carlo studies of U(1) lattice gauge models of Kondo breakdown}},
  year = {2026},
  journal = {Phys. Rev. Lett.},
  note = {Accepted for publication},
  doi = {10.1103/cx1p-thwd},
  eprint = {2512.17801},
  archivePrefix = {arXiv},
  url = {https://doi.org/10.1103/cx1p-thwd}
}

    G. Pan and F. F. Assaad, Phys. Rev. Lett. (accepted, 2026)

    2026
  2. 02

    Defining a universal sign to strictly probe a phase transition

    Shows why the conventional average sign can misidentify phase transitions, and defines a modified sign that removes the influence of the reference system.

    Nvsen Ma, Jun-Song Sun, Gaopei Pan‡, Chen Cheng, and Zheng Yan

    Phys. Rev. B 110, 125141 (2024) arXiv:2301.12438
    Cite 
    @article{Ma2024230112438,
  author = {Ma, Nvsen and Sun, Jun-Song and Pan, Gaopei and Cheng, Chen and Yan, Zheng},
  title = {{Defining a universal sign to strictly probe a phase transition}},
  year = {2024},
  journal = {Phys. Rev. B},
  volume = {110},
  pages = {125141},
  doi = {10.1103/PhysRevB.110.125141},
  eprint = {2301.12438},
  archivePrefix = {arXiv},
  url = {https://doi.org/10.1103/PhysRevB.110.125141}
}

    N. Ma et al., Phys. Rev. B 110, 125141 (2024)

    2024
  3. 03

    Stable computation of entanglement entropy for two-dimensional interacting fermion systems

    Explains why the incremental method yields stable entanglement-entropy measurements, and demonstrates its effectiveness in two-dimensional interacting fermion systems.

    Gaopei Pan, Yuan Da Liao, Weilun Jiang, Jonathan D’Emidio, Yang Qi, Zi Yang Meng

    Phys. Rev. B 108, L081123 (2023) arXiv:2303.14326
    Cite 
    @article{Pan2023230314326,
  author = {Pan, Gaopei and Liao, Yuan Da and Jiang, Weilun and D'Emidio, Jonathan and Qi, Yang and Meng, Zi Yang},
  title = {{Stable computation of entanglement entropy for two-dimensional interacting fermion systems}},
  year = {2023},
  journal = {Phys. Rev. B},
  volume = {108},
  pages = {L081123},
  doi = {10.1103/PhysRevB.108.L081123},
  eprint = {2303.14326},
  archivePrefix = {arXiv},
  url = {https://doi.org/10.1103/PhysRevB.108.L081123}
}

    G. Pan et al., Phys. Rev. B 108, L081123 (2023)

    2023
  4. 04

    Thermodynamic characteristic for a correlated flat-band system with a quantum anomalous Hall ground state

    Explains why a correlated flat-band quantum anomalous Hall state melts far below its single-particle gap, through thermally excited electron–hole pairs.

    Gaopei Pan, Xu Zhang, Hongyu Lu, Heqiu Li, Bin-Bin Chen, Kai Sun, Zi Yang Meng

    Phys. Rev. Lett. 130, 016401 (2023) arXiv:2207.07133
    Cite 
    @article{Pan2023220707133,
  author = {Pan, Gaopei and Zhang, Xu and Lu, Hongyu and Li, Heqiu and Chen, Bin-Bin and Sun, Kai and Meng, Zi Yang},
  title = {{Thermodynamic characteristic for a correlated flat-band system with a quantum anomalous Hall ground state}},
  year = {2023},
  journal = {Phys. Rev. Lett.},
  volume = {130},
  pages = {016401},
  doi = {10.1103/PhysRevLett.130.016401},
  eprint = {2207.07133},
  archivePrefix = {arXiv},
  url = {https://doi.org/10.1103/PhysRevLett.130.016401}
}

    G. Pan et al., Phys. Rev. Lett. 130, 016401 (2023)

    2023
  5. 05

    Fermion sign bounds theory in quantum Monte Carlo simulation

    Derives bounds on the average fermion sign and identifies conditions for algebraic, rather than exponential, decay in low-temperature moiré models.

    Xu Zhang, Gaopei Pan, Xiao Yan Xu, Zi Yang Meng

    Phys. Rev. B 106, 035121 (2022) arXiv:2112.06139
    Cite 
    @article{Zhang2022211206139,
  author = {Zhang, Xu and Pan, Gaopei and Xu, Xiao Yan and Meng, Zi Yang},
  title = {{Fermion sign bounds theory in quantum Monte Carlo simulation}},
  year = {2022},
  journal = {Phys. Rev. B},
  volume = {106},
  pages = {035121},
  doi = {10.1103/PhysRevB.106.035121},
  eprint = {2112.06139},
  archivePrefix = {arXiv},
  url = {https://doi.org/10.1103/PhysRevB.106.035121}
}

    X. Zhang et al., Phys. Rev. B 106, 035121 (2022)

    2022