Condensed matter theory: novel quantum states, phase transitions and critical phenomena in quantum many-body systems; Bose-Einstein condensation, exciton-polariton condensation, ultra-cold atomic gases; methodology of Monte Carlo simulation and high performance computing.

Selected Paper

1. Q. Mei, K. Ji*, and M. Wouters, 'Spatiotemporal scaling of two-dimensional nonequilibrium exciton-polariton systems with weak interactions', arXiv:2002.01806, Phys. Rev. B 103, 045302/1-9 (2021).
2. K. Ji* and B. V. Fine*, 'Suppression of heating in quantum spin clusters under periodic driving as a dynamic localization effect', arXiv:1712.10028, Phys. Rev. Lett. 121, 050602/1-5 (2018).
3. K. Ji and A. Komnik*, 'Spectral weight suppression in response functions of ultracold fermion-boson mixtures', arXiv:1602.05353, Phys. Rev. A 94, 023635/1-13 (2016).
4. K. Ji* and B. V. Fine*, 'Nonthermal statistics in isolated quantum spin clusters after a series of perturbations', arXiv:1102.3651, Phys. Rev. Lett. 107, 050401/1-4 (2011).
5. K. Ji, K. Namikawa, H. Zheng, and K. Nasu, 'Quantum Monte Carlo study on speckle variation due to phot relaxation of ferroelectric cluster in paraelectric barium titanate', arXiv:0812.3763, Phys. Rev. B 79, 144304/1-8 (2009).

2017-2018 2nd Semester:

General Physics I (undergraduate course)
Quantum Statistical Physics and Many-Body Theory (graduate course)

Shanghai Pujiang Program (2017)

Japanese Government Scholarship (2001)