Sub-second spin and lifetime-limited optical coherences in $^{171}$Yb$^{3+}$:CaWO$_4$
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866908677313658880 |
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| author | Tiranov, Alexey Green, Emanuel Hermans, Sophie Liu, Erin Chiossi, Federico Serrano, Diana Loiseau, Pascal Kumar, Achuthan Manoj Bertaina, Sylvain Faraon, Andrei Goldner, Philippe |
| author_facet | Tiranov, Alexey Green, Emanuel Hermans, Sophie Liu, Erin Chiossi, Federico Serrano, Diana Loiseau, Pascal Kumar, Achuthan Manoj Bertaina, Sylvain Faraon, Andrei Goldner, Philippe |
| contents | Optically addressable solid-state spins have been extensively studied for quantum technologies, offering unique advantages for quantum computing, communication, and sensing. Advancing these applications is generally limited by finding materials that simultaneously provide lifetime-limited optical and long spin coherences. Here, we introduce $^{171}$Yb$^{3+}$ ions doped into a CaWO$_4$ crystal. We perform high-resolution spectroscopy of the excited state, and demonstrate all-optical coherent control of the electron-nuclear spin ensemble. We find narrow inhomogeneous broadening of the optical transitions of 185 MHz and radiative-lifetime-limited coherence time up to 0.75~ms. Next to this, we measure a spin-transition ensemble line width of 5 kHz and electron-nuclear spin coherence time reaching 0.15~seconds at zero magnetic field between 50~mK and 1~K temperatures. These results demonstrate the potential of $^{171}$Yb$^{3+}$:CaWO$_4$ as a low-noise platform for building quantum technologies with ensemble-based memories, microwave-to-optical transducers, and optically addressable single-ion spin qubits. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_01592 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Sub-second spin and lifetime-limited optical coherences in $^{171}$Yb$^{3+}$:CaWO$_4$ Tiranov, Alexey Green, Emanuel Hermans, Sophie Liu, Erin Chiossi, Federico Serrano, Diana Loiseau, Pascal Kumar, Achuthan Manoj Bertaina, Sylvain Faraon, Andrei Goldner, Philippe Quantum Physics Materials Science Atomic Physics Optically addressable solid-state spins have been extensively studied for quantum technologies, offering unique advantages for quantum computing, communication, and sensing. Advancing these applications is generally limited by finding materials that simultaneously provide lifetime-limited optical and long spin coherences. Here, we introduce $^{171}$Yb$^{3+}$ ions doped into a CaWO$_4$ crystal. We perform high-resolution spectroscopy of the excited state, and demonstrate all-optical coherent control of the electron-nuclear spin ensemble. We find narrow inhomogeneous broadening of the optical transitions of 185 MHz and radiative-lifetime-limited coherence time up to 0.75~ms. Next to this, we measure a spin-transition ensemble line width of 5 kHz and electron-nuclear spin coherence time reaching 0.15~seconds at zero magnetic field between 50~mK and 1~K temperatures. These results demonstrate the potential of $^{171}$Yb$^{3+}$:CaWO$_4$ as a low-noise platform for building quantum technologies with ensemble-based memories, microwave-to-optical transducers, and optically addressable single-ion spin qubits. |
| title | Sub-second spin and lifetime-limited optical coherences in $^{171}$Yb$^{3+}$:CaWO$_4$ |
| topic | Quantum Physics Materials Science Atomic Physics |
| url | https://arxiv.org/abs/2504.01592 |