Single-atom trapping in the evanescent field of an integrated photonic resonator
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arXiv
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| Autori principali: | , , , , , , , , , , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866914551225647104 |
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| author | Margalit, Yair Davidson, Omri Zemer, Oded Michael, Yoad Bechler, Orel Liran, Dror Gross, Noam Azoury, Doron Raskop, Jeremy Yudkin, Yaakov Guendelman, Gabriel Katzman, Moshe Nagli, Michael Antman, Yair Kandel, Nadav Arwas, Geva Peer, Idit Firstenberg, Ofer Dayan, Barak |
| author_facet | Margalit, Yair Davidson, Omri Zemer, Oded Michael, Yoad Bechler, Orel Liran, Dror Gross, Noam Azoury, Doron Raskop, Jeremy Yudkin, Yaakov Guendelman, Gabriel Katzman, Moshe Nagli, Michael Antman, Yair Kandel, Nadav Arwas, Geva Peer, Idit Firstenberg, Ofer Dayan, Barak |
| contents | Strong atom-photon interactions on scalable photonic platforms hold significant potential for both atomic and photonic quantum information platforms. In particular, trapping of a single atom on a planar photonic integrated resonator at the subwavelength distances required for strong coupling to the guided modes has remained an outstanding challenge. Here we demonstrate efficient trapping of a single ultracold rubidium atom within the evanescent field of an integrated silicon-nitride microring resonator, at distances of 150-200 nm from the chip surface. Efficient, single-stroke loading process is achieved using an evanescent-field mechanism related to Sisyphus cooling, in which a single scattering event dissipates the atom's kinetic energy and transfers it into a near-surface trap. We observe logarithmic scaling of trapping durations spanning from sub-millisecond timescales up to 1 second, without continuous cooling. The trapped atom couples efficiently to the resonator, enabling on-chip photon collection, photon antibunching, and Purcell-enhanced spontaneous emission with single-atom cooperativity exceeding unity. Our results establish the potential of CMOS-compatible chip-based atom-photon interfaces for scalable quantum photonic circuits. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_09532 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Single-atom trapping in the evanescent field of an integrated photonic resonator Margalit, Yair Davidson, Omri Zemer, Oded Michael, Yoad Bechler, Orel Liran, Dror Gross, Noam Azoury, Doron Raskop, Jeremy Yudkin, Yaakov Guendelman, Gabriel Katzman, Moshe Nagli, Michael Antman, Yair Kandel, Nadav Arwas, Geva Peer, Idit Firstenberg, Ofer Dayan, Barak Quantum Physics Atomic Physics Optics Strong atom-photon interactions on scalable photonic platforms hold significant potential for both atomic and photonic quantum information platforms. In particular, trapping of a single atom on a planar photonic integrated resonator at the subwavelength distances required for strong coupling to the guided modes has remained an outstanding challenge. Here we demonstrate efficient trapping of a single ultracold rubidium atom within the evanescent field of an integrated silicon-nitride microring resonator, at distances of 150-200 nm from the chip surface. Efficient, single-stroke loading process is achieved using an evanescent-field mechanism related to Sisyphus cooling, in which a single scattering event dissipates the atom's kinetic energy and transfers it into a near-surface trap. We observe logarithmic scaling of trapping durations spanning from sub-millisecond timescales up to 1 second, without continuous cooling. The trapped atom couples efficiently to the resonator, enabling on-chip photon collection, photon antibunching, and Purcell-enhanced spontaneous emission with single-atom cooperativity exceeding unity. Our results establish the potential of CMOS-compatible chip-based atom-photon interfaces for scalable quantum photonic circuits. |
| title | Single-atom trapping in the evanescent field of an integrated photonic resonator |
| topic | Quantum Physics Atomic Physics Optics |
| url | https://arxiv.org/abs/2605.09532 |