Main Research Topics

A list of my current research directions.

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    Topological Order, TQFT and Related Mathematical Physics

    Generalized symmetry, Quantum double model, Levin-Wen string-net model, Chern-Simons theory, Quantum Hall effect, SPT and SET phases, etc.

    Coming soon...

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    Open System Topological Phase

    Open system dynamics (with non-Hermitian Hamiltonians as a special case), symmetry of Lindbladians, mixed-state long-range entanglement, mixed-state TQFT, etc.

    Coming soon...

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    Spatial and Temporol Quantum Correlations

    Bell-Kochen-Specker theorem, entanglement, quantum steering, Leggett-Garg inequality, pseudo-density operator, quantum process matrix, quantum causality, uncertainty relation, etc.

    Coming soon...

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    Tensor Network & Neural Network

    Efficient methods for simulating complex many-body quantum systems, quantum neural network states, neural network density operator, etc.

    Coming soon...

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    Quantum Machine Learning

    Various quantum neural networks, the no free lunch theorem, trainability, etc.

    Coming soon...

Keywords of Research

  • Physics and Mathematics
    The following are some keyworkds of my research in physics and mathematics:
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Research Interests

My research focuses on quantum information and quantum computation, topological order and TQFT, quantum topology and algebra, etc.

TQFT, CFT, tensor categories, Hopf algebras, weak Hopf algebras, quasi-Hopf algebras, Frobenius algebras.

Topological order, SPT, SET, mixed-state topological phases.

Generalized symmetry, non-invertible symmetry, higher-form symmetry, subsystem symmetry.

Topological quantum error-correcting codes, homological codes, topological quantum computation.

Space-time states, pseudo-density operators, superdensity operators, doubled density operators.

Quantum causality, process matrices, quantum Bayesian inference, quantum retrodiction.

Quantum correlations: quantum discord, quantum entanglement, quantum steering, Bell nonlocality, quantum contextuality.

Research Interests

  • Mathematical Physics
  • Topological Order & TQFT
  • Quantum Field Theory
  • Quantum Topology & Algebra
  • Tensor Categories & Hopf Algebras
  • Quantum Information Theory
  • Quantum Foundations
  • Quantum Computation Theory
  • Quantum Phases of Matter
  • Tensor Networks & Neural Network States
  • Quantum Machine Learning

Truth is ever to be found in simplicity, and not in the multiplicity and confusion of things.

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