Interference trapping of populations in a semi-infinite coupled-resonator waveguide
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arXiv
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| Autores principales: | , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866913775049768960 |
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| author | Fu, Qinglian Li, Jing Lu, Jing Peng, Zhihui Zhou, Lan |
| author_facet | Fu, Qinglian Li, Jing Lu, Jing Peng, Zhihui Zhou, Lan |
| contents | We study the energy structure and dynamics of a two-level emitter (2LE) locally coupled to a semi-infinite one-dimensional (1D) coupled-resonator array (CRA). The energy spectrum in the single-excitation subspace features a continuous band with scattering states, discrete levels with bound states, and a quantum phase transition characterized by the change of the number of bound states. The number of bound states is revealed by the behavior of the excited-state population at long times with quantum beat, residual oscillation, a constant with either non-zero or zero. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_02358 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Interference trapping of populations in a semi-infinite coupled-resonator waveguide Fu, Qinglian Li, Jing Lu, Jing Peng, Zhihui Zhou, Lan Quantum Physics We study the energy structure and dynamics of a two-level emitter (2LE) locally coupled to a semi-infinite one-dimensional (1D) coupled-resonator array (CRA). The energy spectrum in the single-excitation subspace features a continuous band with scattering states, discrete levels with bound states, and a quantum phase transition characterized by the change of the number of bound states. The number of bound states is revealed by the behavior of the excited-state population at long times with quantum beat, residual oscillation, a constant with either non-zero or zero. |
| title | Interference trapping of populations in a semi-infinite coupled-resonator waveguide |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2504.02358 |