Faculty

Zhiyuan Sun

Associate Professor

Department of Physics, Tsinghua University

W305,Physics Building

Beijing 100084,China

Phone:86-10-62772228

Email:zysun@tsinghua.edu.cn

Education and Employment

Education:

2008-2012B.S. in Physics, University of Science and Technology of China

2012-2018:  Ph.D. in Physics, UC San Diego. Advisor:Michael M. Fogler

Employment:

2018-2021:  Postdoctoral/Associate Research Scientist,Columbia University

2021-2022:  HQI Postdoc Fellow, Harvard University

2022-2025:  Assistant Professor, Tsinghua University

2025-present:  Associate Professor, Tsinghua University

Research Interests

Condensed Matter Theory. Specifically :

1.  Nonequilibrium phenomena of many-body systems, especially those induced by light; metastable states; nonequilibrium steady states; periodically driven systems.

2.  Polaritons and other collective modes in condensed matter systems/nano-devices; Light matter interactions; Linear, nonlinear and quantum optics;

We have openings for graduate students and postdocs every year. Undergrads are welcome too. Please contact zysun@tsinghua.edu.cn

Selected Publications

All Publications: https://scholar.google.com/citations?user=50ActtgAAAAJ&hl=en

Nonequilibrium phenomena:

Z. Sun*, Y. Murakami, F. Xuan, T. Kaneko, D. Golež, and A. J. Millis, Dynamical Exciton Condensates in Biased Electron-Hole Bilayers. Phys. Rev. Lett. 133, 217002 (2024).

Z. Sun*, Floquet engineering of many-body states by the ponderomotive potential. Phys. Rev. B 110, 104301 (2024).

Z. Sun, T. Kaneko, D. Golež and A. J. Millis, Second order Josephson effect in excitonic insulators. Phys. Rev. Lett. 127, 127702 (2021)

Z. Sun and A. J. Millis, Topological charge pumping in excitonic insulators. Phys. Rev. Lett. 126, 027601 (2021)

Z. Sun and A. J. Millis, Transient trapping into metastable states in systems with competing orders. Phys. Rev. X 10, 021028 (2020)

Z. Sun, D. N. Basov and M. M. Fogler, Adiabatic amplification of plasmons and demons in 2D systems. Phys. Rev. Lett. 117, 076805 (2016).

Polaritons and other collective modes; Linear, nonlinear and quantum optics:

Z. Sun, D. N. Basov and M. M. Fogler, Graphene as a source of entangled plasmons. Phys. Rev. Research 4, 023208 (2022)

Y. Dong, L. Xiong, I.Y. Phinney, Z. Sun, et al., Fizeau Drag in Graphene Plasmonics. Nature 594, 513–516 (2021)

Z. Sun and A. J. Millis, Bardasis-Schrieffer polaritons in excitonic insulators. Phys. Rev. B 102, 041110 (R) (2020)

Z. Sun, M. M. Fogler, D. N. Basov and A. J. Millis, Collective modes and THz near field response of superconductors. Phys. Rev. Research 2, 023413 (2020)

G. X. Ni, A. S. McLeod, Z. Sun, et al., Fundamental limits to graphene plasmonics. Nature 557, 530-533 (2018)

Z. Sun, D. N. Basov and M. M. Fogler, Universal linear and nonlinear electrodynamics of a Dirac fluid. PNAS 115 (13), 3285-3289 (2018).

Z. Sun, Á. Gutiérrez-Rubio, D. N. Basov and M. M. Fogler, Hamiltonian optics of hyperbolic polaritons in nanogranules. Nano Lett. 15 (7), pp 4455-4460 (2015).