Jielun (Chris) Chen

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jchen9@caltech.edu
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About

I’m a 4th-year Ph.D. student at Caltech, advised by Prof. Garnet Chan and Prof. John Preskill. My research focuses on developing quantum algorithms for quantum chemistry and exploring ideas at the intersection of quantum computing and tensor-network methods.

Previously, I obtained my B.S. from UC Irvine with a double major in physics and computer science. I had research experiences with Prof. Steve White on tensor network methods and with Prof. Kieron Burke on density functional theory.

Publications & Preprints

  1. A framework for robust quantum speedups in practical correlated electronic structure and dynamics
    Jielun Chen, Garnet K. Chan
    [arXiv:2508.15765]
  2. Quantum linear algebra for disordered electrons
    Jielun Chen, Garnet K. Chan
    [arXiv:2411.00434]
  3. Positive bias makes tensor-network contraction tractable
    Jiaqing Jiang, Jielun Chen, Norbert Schuch, Dominik Hangleiter
    [QIP 2025] [STOC 2025] [arXiv:2410.05414]
  4. Sign problem in tensor network contraction
    Jielun Chen, Jiaqing Jiang, Dominik Hangleiter, Norbert Schuch
    [PRX Quantum 2024] [arXiv:2404.19023]
  5. Direct interpolative construction of the discrete Fourier transform as a matrix product operator
    (alphabetical order) Jielun Chen, Michael Lindsey
    [arXiv:2404.03182]
  6. Quantum Fourier transform has small entanglement
    Jielun Chen, E.M. Stoudenmire, Steven R. White
    [PRX Quantum 2023] [arXiv:2210.08468]
  7. How well does Kohn–Sham regularizer work for weakly correlated systems?
    Bhupalee Kalita, Ryan Pederson, Jielun Chen, Li Li, Kieron Burke
    [J. Phys. Chem. Lett. 2022] [arXiv:2110.14846]
  8. Conditional probability density functional theory
    Ryan Pederson, Jielun Chen, Steven R. White, Kieron Burke
    [Phys. Rev. B 2022] [arXiv:2203.09647]

Talks

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