We are a theoretical research group focused on quantum AI, strong light-matter interactions, and their applications across various disciplines. Our work investigates physical systems such as semiconductor microcavities, quantum dots, and related light-matter platforms.

We have openings!

We are currently looking for excellent Ph.D. candidates from the top 50 universities or with exceptional research record to join our group. Please email me if you are interested (sanjibghosh@cuhk.edu.cn). 

Research highlights

Selected publications

See the full list on google scholar

Selected review articles:

1. S. Ghosh, R. Su*, J. Zhao, A. Fieramosca, J. Wu, T. Li, Q. Zhang, F. Li, Z. Chen, T. Liew, D. Sanvitto, Q. Xiong*, Microcavity exciton polaritons at room temperature, Photonics Insights, 1, R04 (2022).

2. S. Ghosh, K. Nakajima, T. Krisnanda, K. Fujii, and T. Liew*, Quantum Neuromorphic Computing with Reservoir Computing Networks, Adv. Quantum Technol. 2100053 (2021).

Selected research articles

1. X. Xu, L. Tian, Z. An, Q. Xiong*, and S. Ghosh*, Exciton polariton critical non-Hermitian skin effect with spin-momentum-locked gains, Phys. Rev. B 111, L121301 (2025)

2. J. Song#, S. Ghosh#, X. Deng, C. Li, Q. Shang, X. Liu, Y. Wang, X. Gao, W. Yang, X. Wang, Q. Zhao, K. Shi, P. Gao, G. Xing, Q. Xiong*, Q. Zhang*, Room-temperature continuous-wave pumped exciton polariton condensation in a perovskite microcavity. Science Advances, 11, eadr1652 (2025)

3. Y. Wang#, H. Xu#, X. Deng, T. Liew, S. Ghosh*, Q. Xiong*, Topological Single Photon Emission from Quantum Emitter Chains, npj Quantum Information, 10, 13 (2024)

4. Y. Shi#, Y. Gan#, Y. Chen, Y. Wang, S. Ghosh*, A. Kavokin*, Q. Xiong*, Coherent optical spin Hall transport for polaritonics at room temperature, Nature Materials, 24, 56–62 (2025), https://doi.org/10.1038/s41563-024-02028-2 . 

5. Q. H. Tran*, S. Ghosh*, K. Nakajima*. Quantum-classical Hybrid Information Processing via a Single Quantum System, Phys. Rev. Research 5, 043127 (2023) 

6. T. Krisnanda*, H. Xu, S. Ghosh*, and T. C. H. Liew, Tomographic completeness and robustness of quantum reservoir networks, Phys. Rev. A 107, 042402 (2023) 

7. Y. Chen#, Y. Shi#, Y. Gan, H. Liu, T. Li, S. Ghosh*, Q. Xiong*. Unraveling the Ultrafast Coherent Dynamics of Exciton Polariton Propagation at Room Temperature. Nano Letters 23 (18), 8704-8711 (2023)

8. J.Q. Wu#, S. Ghosh#, Y.S. Gan, Y. Shi, S. Mansal, H.D. Sun, B.L. Zhang, T.C.H. Liew*, R. Su*, and Qihua Xiong*, “High-order topological polariton corner state lasing”, Science Advances 9, eadg432. (2023)

9. Y. Chen, J. Feng*, Y. Huang, W. Chen, R. Su, S. Ghosh, Y. Hou, Q. Xiong*, C.-W. Qiu*, Compact spin-valley-locked perovskite emission, Nature Materials 22, 1065–1070 (2023)

10. J.Q. Wu, R. Su*, A. Fieramosca, S. Ghosh, J.X. Zhao, T.C.H. Liew*, and Qihua Xiong*, “Perovskite polariton parametric oscillator”, Adv. Photon. 3, 055003 (2021)

11. R. Su*,#, S. Ghosh#, T.C.H. Liew*, and Qihua Xiong*, “Optical switching of topological phase in a perovskite polariton lattice”, Science Advances 7,  eabf8049. DOI: 10.1126/sciadv.abf8049 (2021)

12. R. Su#, S. Ghosh#, J. Wang, S. Liu, C. Diederichs, T.C.H. Liew*, and Qihua Xiong*, “Observation of exciton polariton condensation in a perovskite lattice at room temperature”, Nature Physics 16, 301-306 (2020)