Rydberg blockade in an ultracold strontium gas revealed by two-photon excitation dynamics
We demonstrate the interaction-induced blockade effect in an ultracold 88Sr gas via studying the time dynamics of a two-photon excitation to the triplet Rydberg series 5sns3S1 for five different principal quantum numbers n ranging from 19 to 37. By using a multipulse excitation sequence to increase...
Gespeichert in:
| Hauptverfasser: | , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
21 June 2021
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| In: |
Physical review
Year: 2021, Jahrgang: 103, Heft: 6, Pages: 1-10 |
| ISSN: | 2469-9934 |
| DOI: | 10.1103/PhysRevA.103.063313 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevA.103.063313 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevA.103.063313 
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| Verfasserangaben: | Chang Qiao, Canzhu Tan, Julia Siegl, Fachao Hu, Zhijing Niu, Yuhai Jiang, Matthias Weidemüller, and Bing Zhu |
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| 520 | |a We demonstrate the interaction-induced blockade effect in an ultracold 88Sr gas via studying the time dynamics of a two-photon excitation to the triplet Rydberg series 5sns3S1 for five different principal quantum numbers n ranging from 19 to 37. By using a multipulse excitation sequence to increase the detection sensitivity, we could identify Rydberg-excitation-induced atom losses as low as <1%. Based on an optical Bloch equation formalism, treating the Rydberg-Rydberg interaction on a mean-field level, the van der Waals coefficients are extracted from the observed dynamics, which agree fairly well with ab initio calculations. | ||
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