Double-quantum-zero-quantum 2D coherent spectroscopy reveals quantum coherence between collective states in an atomic vapor
We report a novel, to the best of our knowledge, double-quantum-zero-quantum two-dimensional coherent spectroscopy (2DCS) that allows direct detection of the quantum coherence between multiparticle collective states. Through correlating the double-quantum coherence and the zero-quantum coherence, si...
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| Veröffentlicht in: | Optics letters 2022-02, Vol.47 (4), p.997-1000 |
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| container_title | Optics letters |
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| creator | Yu, ShaoGang Geng, YiFeng Liang, DanFu Li, HeBin Liu, XiaoJun |
| description | We report a novel, to the best of our knowledge, double-quantum-zero-quantum two-dimensional coherent spectroscopy (2DCS) that allows direct detection of the quantum coherence between multiparticle collective states. Through correlating the double-quantum coherence and the zero-quantum coherence, signatures for coherence between collective states can be well isolated as side peaks and readily identified in the 2D spectrum. The experiment is implemented in a vapor of rubidium atoms in a collinear 2DCS setup. Good agreement with a theoretical simulation using density matrix confirms the essential role of the interatomic correlation effect in generating the side peak signals. This 2D spectrum technique paves a new avenue for studying the coherent coupling of highly excited states and many-body properties. |
| doi_str_mv | 10.1364/OL.449365 |
| format | Article |
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| ispartof | Optics letters, 2022-02, Vol.47 (4), p.997-1000 |
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| language | eng |
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| source | Optica Publishing Group Journals |
| subjects | Coherence Quantum phenomena Rubidium Spectroscopy Spectrum analysis |
| title | Double-quantum-zero-quantum 2D coherent spectroscopy reveals quantum coherence between collective states in an atomic vapor |
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