Email: phylch@nus.edu.sg
Office: S12-02-11
Tel: +65 6516 6678
Current Research
Synthetic and non-equilibrium condensed matter
Topological signatures are widespread in various synthetic topological metamaterials and non-equilibrium setups, with potential applications in photonics and electronics. Non-equilibrium effects lead to a number of new phenomena such as unconventional critical scaling behavior and novel bulk-boundary correspondences.
Specific directions include:
- non-Hermitian dynamics and phase transitions
- Floquet engineering of new phases
- topological photonics, mechanics and circuits
- topology of non-linear dynamics
- non-equilibrium complex networks
Strongly correlated systems
My group also explores the intriguing interplay of energetics and topology on strongly interacting particles. Current directions include:
- entanglement entropy and conformal field theory
- fractional quantum Hall systems
- Simulation of topological and non-unitary systems on quantum computers
Selected Publications
- Ching Hua Lee, Exceptional Bound States and negative Entanglement Entropy. Physical Review Letters 128 (1), 010402 (2022).
- Jiang Hui and Ching Hua Lee, Dimensional transmutation from non-Hermiticity. Physical Review Letters, 131(7), 076401 (2023).
- Mengjie Yang and Ching Hua Lee, Percolation-Induced PT Symmetry Breaking. Physical Review Letters, 133 (13), 136602 (2024).
- Jin Ming Koh, Tommy Tai and Ching Hua Lee, Simulation of interaction-induced chiral topological dynamics on a digital quantum computer. Physical Review Letters 129 (14),
140502 (2022). - Ruizhe Shen, Tianqi Chen, Bo Yang and Ching Hua Lee, Observation of the non-Hermitian skin effect and Fermi skin on a digital quantum computer. arXiv preprint: 2311.10143. To appear in Nature Communications.
- Jin Ming Koh, Tommy Tai and Ching Hua Lee, Realization of higher-order topological lattices on a quantum computer. Nature Communications 15 (1), 5807 (2024).
- Ruizhe Shen, Fang Qin, Jean-Yves Desaules, Zlatko Papić and Ching Hua Lee, Enhanced many-body quantum scars from the non-Hermitian Fock skin effect. Physical Review
Letters, 133 (21), 216601 (2024). - Ruizhe Shen, Tianqi Chen, Mohammad Mujahid Aliyu, Fang Qin, Yin Zhong, Huanqian Loh and Ching Hua Lee, Proposal for observing Yang-Lee criticality in Rydberg atomic arrays. Physical Review Letters 131(8), 080403 (2023).
- Russell Yang, Jun Wei Tan, Tommy Tai, Jin Ming Koh, Linhu Li, Stefano Longhi and Ching Hua Lee, Designing non-Hermitian real spectra through electrostatics. Science Bulletin 67
(18), 1865-1873 (2022). - Jin Ming Koh, Tommy Tai, Yong Han Phee, Wei En Ng and Ching Hua Lee, Stabilizing multiple topological fermions on a quantum computer. npj Quantum Information 8 (1), 1-10
(2022).
Affiliations & Links
- IPS Nanotechnology Physics Medal and Prize 2023
- FoS Young Scientist Award 2023
- Associate editor of Communications Physics
- Google Scholar