A high-resolution molecular spin-photon interface at telecommunications wavelengths
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arXiv
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| Main Authors: | , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866909620868481024 |
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| author | Weiss, Leah R. Smith, Grant T. Murphy, Ryan A. Golesorkhi, Bahman Méndez, José A. Méndez Patel, Priya Niklas, Jens Poluektov, Oleg G. Long, Jeffrey R. Awschalom, David D. |
| author_facet | Weiss, Leah R. Smith, Grant T. Murphy, Ryan A. Golesorkhi, Bahman Méndez, José A. Méndez Patel, Priya Niklas, Jens Poluektov, Oleg G. Long, Jeffrey R. Awschalom, David D. |
| contents | Optically addressable electronic spins in polyatomic molecules are a promising platform for quantum information science with the potential to enable scalable qubit design and integration through atomistic tunability and nanoscale localization. However, optical state- and site-selection are an open challenge. Here we introduce an organo-erbium spin qubit in which narrow (MHz-scale) optical and spin transitions couple to provide high-resolution access to spin degrees of freedom with telecommunications frequency light. This spin-photon interface enables demonstration of optical spin polarization and readout that distinguishes between spin states and magnetically inequivalent sites in a molecular crystal. Operation at frequencies compatible with mature photonic and microwave devices opens a path for engineering scalable, integrated molecular spin-optical quantum technologies. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_17195 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | A high-resolution molecular spin-photon interface at telecommunications wavelengths Weiss, Leah R. Smith, Grant T. Murphy, Ryan A. Golesorkhi, Bahman Méndez, José A. Méndez Patel, Priya Niklas, Jens Poluektov, Oleg G. Long, Jeffrey R. Awschalom, David D. Quantum Physics Mesoscale and Nanoscale Physics Optically addressable electronic spins in polyatomic molecules are a promising platform for quantum information science with the potential to enable scalable qubit design and integration through atomistic tunability and nanoscale localization. However, optical state- and site-selection are an open challenge. Here we introduce an organo-erbium spin qubit in which narrow (MHz-scale) optical and spin transitions couple to provide high-resolution access to spin degrees of freedom with telecommunications frequency light. This spin-photon interface enables demonstration of optical spin polarization and readout that distinguishes between spin states and magnetically inequivalent sites in a molecular crystal. Operation at frequencies compatible with mature photonic and microwave devices opens a path for engineering scalable, integrated molecular spin-optical quantum technologies. |
| title | A high-resolution molecular spin-photon interface at telecommunications wavelengths |
| topic | Quantum Physics Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2505.17195 |