Center for Nonlinear Studies

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Center for Nonlinear Studies

Wonjune Choi

CNLS Postoctoral Associate
T-4

Dynamics of quantum many-body systems

Office: TA-3, Bldg 1690, Room 130
Mail Stop: B258
Email: wchoi@lanl.gov

Research highlight

I study strongly correlated quantum matter by probing its dynamical properties and many-body entanglement. Recently, my work has focused on the nonlinear dynamics of quantum many-body systems, laying the theoretical foundation for new experimental protocols that can reveal hidden phases of matter.

Talks at CNLS:

Nov 25th, 2024 - Colloquium: Nonlinear Spectroscopy as a Probe of Quantum Spin Liquids

Educational Background/Employment:

B.S. 2015 Physics, Korea Advanced Institute of Science and Technology
M.S. 2016 Physics, Perimeter Institute for Theoretical Physics & University of Waterloo
Ph.D. 2021 Physics, University of Toronto
Employment:
- 2021-2024: Postdoctoral Research Fellow, University of Toronto

Research Interests:

Frustrated Magnetism and Quantum Spin Liquids
Quantum Geometry and Topology of Highly Entangled Quantum States

Selected Recent Publications:

Choi, W.; Knap, M.; Pollmann, F.. Finite-temperature entanglement negativity of fermionic symmetry-protected topological phases and quantum critical points in one dimension (2024) 10.1103/PhysRevB.109.115132
Choi, W.; Tavakol, O.; Kim Y.B.. Pairing instabilities of the Yukawa-SYK models with controlled fermion incoherence (2022) 10.21468/SciPostPhys.12.5.151
Choi, W.; Lee, K.H.; Kim, Y.B.. Theory of two-dimensional nonlinear spectroscopy for the Kitaev spin liquid (2020) 10.1103/PhysRevLett.124.117205

CNLS Publications:

Kirchner, Nico; Choi, Wonjune; Pollmann, Frank. Measuring Anyonic Exchange Phases Using Two-Dimensional Coherent Spectroscopy. arXiv preprint 2025
Kirchner, Nico; Choi, Wonjune; Pollmann, Frank. Measuring Anyonic Exchange Phases Using Two-Dimensional Coherent Spectroscopy. arXiv preprint 2025