The Zero-Quantum-Defect Method and the Fundamental Vibrational Interval of H$_2^+$
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arXiv
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| Auteurs principaux: | , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866917569725726720 |
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| author | Doran, Ioana Hölsch, Nicolas Beyer, Maximilian Merkt, Frédéric |
| author_facet | Doran, Ioana Hölsch, Nicolas Beyer, Maximilian Merkt, Frédéric |
| contents | The fundamental vibrational interval of H$_{2}^+$ has been determined to be $ΔG _{1/2} = 2191.126\,614(17)$ cm$^{-1}$ by continuous-wave laser spectroscopy of Stark manifolds of Rydberg states of H$_2$ with the H$_{2}^+$ ion core in the ground and first vibrationally excited states. Extrapolation of the Stark shifts to zero field yields the zero-quantum-defect positions $-R_{\textrm{H}_2}$/$n^2$, from which ionization energies can be determined. Our new result represents a four-order-of-magnitude improvement compared to earlier measurements. It agrees, within the experimental uncertainty, with the value of 2191.126\,626\,344(17)(100) cm$^{-1}$ determined in non-relativistic quantum electrodynamic calculations V. Korobov, L. Hilico and J.-Ph. Karr, Phys. Rev. Lett. 118, 233001 (2017) http://doi.org/10.1103/PhysRevLett.118.233001. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_09194 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | The Zero-Quantum-Defect Method and the Fundamental Vibrational Interval of H$_2^+$ Doran, Ioana Hölsch, Nicolas Beyer, Maximilian Merkt, Frédéric Atomic Physics Chemical Physics The fundamental vibrational interval of H$_{2}^+$ has been determined to be $ΔG _{1/2} = 2191.126\,614(17)$ cm$^{-1}$ by continuous-wave laser spectroscopy of Stark manifolds of Rydberg states of H$_2$ with the H$_{2}^+$ ion core in the ground and first vibrationally excited states. Extrapolation of the Stark shifts to zero field yields the zero-quantum-defect positions $-R_{\textrm{H}_2}$/$n^2$, from which ionization energies can be determined. Our new result represents a four-order-of-magnitude improvement compared to earlier measurements. It agrees, within the experimental uncertainty, with the value of 2191.126\,626\,344(17)(100) cm$^{-1}$ determined in non-relativistic quantum electrodynamic calculations V. Korobov, L. Hilico and J.-Ph. Karr, Phys. Rev. Lett. 118, 233001 (2017) http://doi.org/10.1103/PhysRevLett.118.233001. |
| title | The Zero-Quantum-Defect Method and the Fundamental Vibrational Interval of H$_2^+$ |
| topic | Atomic Physics Chemical Physics |
| url | https://arxiv.org/abs/2401.09194 |