1. Construction of various time-dependent Hamiltonians on a single photonic chip
- Author
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Ye, Rui, Li, Guangzhen, Wan, Shuai, Xue, Xiaotian, Wang, Piyu, Qiao, Xin, Li, Hao, Liu, Shijie, Wang, Jiayu, Ma, Rui, Bo, Fang, Zheng, Yuanlin, Dong, Chunhua, Yuan, Luqi, and Chen, Xianfeng
- Subjects
Physics - Optics - Abstract
Integrated photonics provides an important platform for simulating physical models with high-performance chip-scale devices, where the lattice size and the time-dependence of a model are key ingredients for further enriching the functionality of a photonic chip. Here, we propose and demonstrate the construction of various time-dependent Hamiltonian models using a single microresonator on thin-film lithium niobate chip. Such an integrated microresonator holds high quality factor to 10^6, and supports the construction of the synthetic frequency lattice with effective lattice sites up to 152 under the electro-optic modulation. By further applying a bichromatic modulation composed of two radio-frequency signals oppositely detuned from the resonant frequency in the microresonator, we build different time-dependent Hamiltonians with the time-varying nearest-neighbor coupling strength in synthetic frequency lattice. We measure the temporal features from capturing the dynamic band structures of the lattice and demonstrate a variety of time-dependent synthetic lattice models by engineering the driven pattern of the modulation, highlighting great flexibility of the microresonator. Our work shows a photonic chip for simulating versatile time-dependent Hamiltonians, which pushes forward quantum simulations in integrated photonics with great experimental tunability and reconfigurability., Comment: 14 pages, 5 figures
- Published
- 2024