Junkai Dong (董焌锴)

arXiv | Google Scholar | CV

email: junkaidong-at-g.harvard-dot-edu

About Me

I am a physics PhD candidate at Harvard University. I am working with Prof. Ashvin Vishwanath on strongly correlated physics. I am currently visiting KITP as a KITP Graduate Fellow until December 2024. My interests lie in studying emergent phenomena in condensed matter systems analytically and numerically. In my spare time, I enjoy music, birding, hiking, and reading.

Publications

P. J. Ledwith, J. Dong, A. Vishwanath, and E. Khalaf, Nonlocal Moments in the Chern Bands of Twisted Bilayer Graphene.

arXiv

Q. Li, J. Dong, P. J. Ledwith, and E. Khalaf, Constraints on real space representations of Chern bands.

arXiv

T. Soejima\(^*\), J. Dong\(^*\), T. Wang, T. Wang, M. P. Zaletel, A. Vishwanath, and D. E. Parker, Anomalous Hall Crystals in Rhombohedral Multilayer Graphene II: General Mechanism and a Minimal Model.

DOI | arXiv

M. Fujimoto, D. E. Parker, J. Dong, E. Khalaf, A. Vishwanath, and P. J. Ledwith, Higher vortexability: zero field realization of higher Landau levels.

arXiv

J. Dong\(^*\), T. Wang\(^*\), T. Wang\(^*\), T. Soejima, M. P. Zaletel, A. Vishwanath, and D. E. Parker, Anomalous Hall Crystals in Rhombohedral Multilayer Graphene I: Interaction-Driven Chern Bands and Fractional Quantum Hall States at Zero Magnetic Field.

DOI | arXiv | Publicity: Condensed Matter Journal Club | Nature News

J. Dong, J. Wang, P. J. Ledwith, A. Vishwanath, and D. E. Parker, Composite Fermi Liquid at Zero Magnetic Field in Twisted \(\textrm{MoTe}_2\), Phys. Rev. Lett. 131, 136502 (2023). Editor's suggestion.

DOI | arXiv | Publicity: APS Physics Viewpoint | Physical Review Journal Club

Q. Gao, J. Dong, P. J. Ledwith, D. E. Parker, and E. Khalaf, Untwisting Moirè Physics: Almost Ideal Bands and Fractional Chern Insulators in Periodically Strained Monolayer Graphene, Phys. Rev. Lett. 131, 096401 (2023). PRL Cover.

DOI | arXiv

J. Dong, P. J. Ledwith, E. Khalaf, J. Y. Lee, and A. Vishwanath, Many-Body Ground States from Decomposition of Ideal Higher Chern Bands: Applications to Chirally Twisted Graphene Multilayers, Phys. Rev. Research 5, 023166 (2023).

DOI | arXiv

J. Dong, J. Wang, and L. Fu, Dirac Electron under Periodic Magnetic Field: Platform for Fractional Chern Insulator and Generalized Wigner Crystal, arXiv:2208.10516.

arXiv

J. Dong, V. Elser, G. Gyawali, K. Y. Jee, J. Kent-Dobias, A. Mandaiya, M. Renz, and Y. Su, Glass Phenomenology in the Hard Matrix Model, J. Stat. Mech. 2021, 093302 (2021).

DOI | arXiv

J. Dong, T. Hartman, and Y. Jiang, Averaging over Moduli in Deformed WZW Models, J. High Energ. Phys. 2021, 185 (2021).

DOI | arXiv | Undergraduate Thesis

J. Dong, V. Juricic, and B. Roy, Topolectric Circuits: Theory and Construction, Phys. Rev. Research 3, 023056 (2021).

DOI | arXiv

J. Dong and E. Mueller, Exact Topological Flat Bands from Continuum Landau Levels, Phys. Rev. A 101, 013629 (2020).

DOI | arXiv

J. Dong, Y. Chen, D. Xu, and Z. Yin, Greenberger-Horne-Zeilinger Test for Multi-Dimension and Arbitrary Time Nodes Entangled Histories, Sci. Bull. 62, 1235 (2017).

DOI | arXiv

Talks

Anomalous Hall Crystals in Rhombohedral Multilayer Graphene, Invited Talk, Quantum Theory Seminar, Cornell University, April 2024. Video
Composite Fermi Liquid at Zero Magnetic Field in Twisted \(\textrm{MoTe}_2\), Talk, APS March Meeting 2024.
Composite Fermions Form and Flow without a Magnetic Field, Invited Talk, Physical Review Journal Club, American Physical Society, November 2023. Video
Composite Fermi Liquid at Zero Magnetic Field in Twisted \(\textrm{MoTe}_2\), Invited Talk, Special AEP Seminar, Cornell University, August 2023. Video
Composite Fermi Liquid at Zero Magnetic Field in Twisted \(\textrm{MoTe}_2\), Invited Talk, Thouless Institute for Quantum Matter Seminar, University of Washington Seattle, June 2023. Video
Exact Many-Body Ground States from Decomposition of Ideal Higher Chern Bands: Applications to Chirally Twisted Graphene Multilayers, Talk, APS March Meeting 2023.
Exact Many-Body Ground States from Decomposition of Ideal Higher Chern Bands: Applications to Chirally Twisted Graphene Multilayers, Invited Talk, Quantum Matter in Mathematics and Physics, Center of Mathematical Sciences and Applications, Harvard University, MA, Dec 2022. Video
CC BY-SA 4.0 Junkai Dong. Last modified: November 19, 2024. Website built with Franklin.jl and the Julia programming language.