Yuchen Guo (he/him/his)

“To establish a unifying framework that connects theoretical tensor-network tools with experimental quantum computing platforms, enabling robust characterization and control of open-system quantum phases.”

I’m a third-year Ph.D. student in the Department of Physics, Tsinghua University, working on tensor-network approaches to quantum computation, open quantum systems, and topological phases. My long-term goal is to develop theoretical and experimental strategies to characterize and control quantum phases in realistic noisy quantum systems. I am very fortunate to be advised by Prof. Shuo Yang (homepage).

Research Focus

• Developing new quantum computation techniques
• Discovering novel topological quantum matter
• Exploring the interplay between noise/dissipation and entanglement

News / Updates

• Oct 2025 — Oral presentation at APPC16 (Asia Pacific Physics Conference).
• Mar–Aug 2026 (planned) — Visiting student at Max Planck Institute of Quantum Optics (MPQ) with Prof. J. I. Cirac.
• Recent honors — National Scholarship for Ph.D. Students.
• Manuscript status — Our paper on imaginary-time Lindbladian framework is provisionally accepted by Reports on Progress in Physics and will be featured by Physics World.

Selected Publications

• Locally Purified Density Operators for Symmetry-Protected Topological Phases in Mixed States
  Yuchen Guo^#, Jian-Hao Zhang^#, Hao-Ran Zhang, Shuo Yang, and Zhen Bi, Phys. Rev. X 15, 021060 (2025).
  Tensor network formulation for classification and construction of topological phases in open systems
• Quantum Error Mitigation via Matrix Product Operators
  Yuchen Guo and Shuo Yang, PRX Quantum 3, 040313 (2022).
  A new error mitigation approach based on the tensor network representation of the noise channels.
• Construction of Non-Hermitian Parent Hamiltonian from Matrix Product States
  Ruohan Shen^#, Yuchen Guo^#, and Shuo Yang, Phys. Rev. Lett. 130, 220401 (2023).
  A new parent Hamiltonian method for systematically constructing non-Hermitian systems.
• Noise effects on purity and quantum entanglement in terms of physical implementability
  Yuchen Guo and Shuo Yang, npj Quantum Inform. 9, 11 (2023).
  Two universal and concise inequations describing the destructive effects of quantum noise on purity and quantum entanglement.
• Strong-to-weak spontaneous symmetry breaking meets average symmetry-protected topological order
  Yuchen Guo and Shuo Yang, Phys. Rev. B 111, L201108 (2025, Editors Suggestion).
  A new quantum phase in open systems with the coexistence of symmetry-protected topological order and spontaneous symmetry-breaking order
• Quantum state tomography with locally purified density operators and local measurements
  Yuchen Guo and Shuo Yang, Commun. Phys. 7, 322 (2024).
  A new quantum state tomography method based on tensor network representation and using only local measurements

👉 Full list: see Publications.

CV · Service · Contact

• 📄 Full CV (PDF) — last updated Oct 2025
• 📝 Academic Service: Referee for PRX, PRL, PRX Quantum, PRR, PRA, PRB
• 🌍 Profiles:
  Email · Google Scholar (automatically updated) · ORCID · ResearchGate · Github