Spin-dynamics of telecom-band optically addressable single Er3+ ions in CaWO4 at millikelivin temepratures

Ashwin K. Boddeti; Adam T. Turflinger; Joseph Alexander; Sebastian P. Horvath; Mehmet Tuna Uysal; Haitong Xu; Łukasz Dusanowski; Salim Ourari; Cady Feng; Robert Joseph Cava; Nathalie P. de Leon; Jeffrey Douglas Thompson

doi:10.1364/CLEO_FS.2025.FF101_7

Spin-dynamics of telecom-band optically addressable single Er³⁺ ions in CaWO₄ at millikelivin temepratures

Ashwin K. Boddeti
, Adam T. Turflinger
, Joseph Alexander
, Sebastian P. Horvath
, Mehmet Tuna Uysal
, Haitong Xu
, Łukasz Dusanowski
, Salim Ourari
, Cady Feng
, Robert Joseph Cava
, Nathalie P. de Leon
, Jeffrey Douglas Thompson

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Single Er³⁺ ions in CaWO₄ coupled to nanophotonic cavities enable indistinguishable single-photon emission and spin-photon entanglement in the telecom band, forming building blocks for quantum repeater networks. However, spin decoherence from paramagnetic impurities limits fidelity. We investigate spin dynamics of near-surface Er ions (∼ 10-15 nm from surface) as a step toward quantum repeaters and memory.

Original language	English (US)
Title of host publication	CLEO
Subtitle of host publication	Fundamental Science - Proceedings CLEO 2025
Publisher	Optical Society of America
ISBN (Electronic)	9781957171500
DOIs	https://doi.org/10.1364/CLEO_FS.2025.FF101_7
State	Published - 2025
Event	2025 CLEO: Fundamental Science, CLEO-FS 2025 - Long Beach, United States Duration: May 4 2025 → May 9 2025

Publication series

Name	CLEO: Fundamental Science - Proceedings CLEO 2025

Conference

Conference	2025 CLEO: Fundamental Science, CLEO-FS 2025
Country/Territory	United States
City	Long Beach
Period	5/4/25 → 5/9/25

All Science Journal Classification (ASJC) codes

General Computer Science
Space and Planetary Science
Control and Systems Engineering
Electrical and Electronic Engineering
Electronic, Optical and Magnetic Materials
Instrumentation

Access to Document

10.1364/CLEO_FS.2025.FF101_7

Cite this

Boddeti, A. K., Turflinger, A. T., Alexander, J., Horvath, S. P., Uysal, M. T., Xu, H., Dusanowski, Ł., Ourari, S., Feng, C., Cava, R. J., de Leon, N. P., & Thompson, J. D. (2025). Spin-dynamics of telecom-band optically addressable single Er³⁺ ions in CaWO₄ at millikelivin temepratures. In CLEO: Fundamental Science - Proceedings CLEO 2025 (CLEO: Fundamental Science - Proceedings CLEO 2025). Optical Society of America. https://doi.org/10.1364/CLEO_FS.2025.FF101_7

@inproceedings{2395b7c6bd1f487da77fba3bf9c89632,

title = "Spin-dynamics of telecom-band optically addressable single Er3+ ions in CaWO4 at millikelivin temepratures",

abstract = "Single Er3+ ions in CaWO4 coupled to nanophotonic cavities enable indistinguishable single-photon emission and spin-photon entanglement in the telecom band, forming building blocks for quantum repeater networks. However, spin decoherence from paramagnetic impurities limits fidelity. We investigate spin dynamics of near-surface Er ions (∼ 10-15 nm from surface) as a step toward quantum repeaters and memory.",

author = "Boddeti, \{Ashwin K.\} and Turflinger, \{Adam T.\} and Joseph Alexander and Horvath, \{Sebastian P.\} and Uysal, \{Mehmet Tuna\} and Haitong Xu and {\L}ukasz Dusanowski and Salim Ourari and Cady Feng and Cava, \{Robert Joseph\} and \{de Leon\}, \{Nathalie P.\} and Thompson, \{Jeffrey Douglas\}",

note = "Publisher Copyright: {\textcopyright} Optica Publishing Group 2025 {\textcopyright} The Author(s); 2025 CLEO: Fundamental Science, CLEO-FS 2025 ; Conference date: 04-05-2025 Through 09-05-2025",

year = "2025",

doi = "10.1364/CLEO\_FS.2025.FF101\_7",

language = "English (US)",

series = "CLEO: Fundamental Science - Proceedings CLEO 2025",

publisher = "Optical Society of America",

booktitle = "CLEO",

}

Boddeti, AK, Turflinger, AT, Alexander, J, Horvath, SP, Uysal, MT, Xu, H, Dusanowski, Ł, Ourari, S, Feng, C, Cava, RJ , de Leon, NP & Thompson, JD 2025, Spin-dynamics of telecom-band optically addressable single Er³⁺ ions in CaWO₄ at millikelivin temepratures. in CLEO: Fundamental Science - Proceedings CLEO 2025. CLEO: Fundamental Science - Proceedings CLEO 2025, Optical Society of America, 2025 CLEO: Fundamental Science, CLEO-FS 2025, Long Beach, United States, 5/4/25. https://doi.org/10.1364/CLEO_FS.2025.FF101_7

Spin-dynamics of telecom-band optically addressable single Er³⁺ ions in CaWO₄ at millikelivin temepratures. / Boddeti, Ashwin K.; Turflinger, Adam T.; Alexander, Joseph et al.
CLEO: Fundamental Science - Proceedings CLEO 2025. Optical Society of America, 2025. (CLEO: Fundamental Science - Proceedings CLEO 2025).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AU - Boddeti, Ashwin K.

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AU - Alexander, Joseph

AU - Horvath, Sebastian P.

AU - Uysal, Mehmet Tuna

AU - Xu, Haitong

AU - Dusanowski, Łukasz

AU - Ourari, Salim

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AU - Cava, Robert Joseph

AU - de Leon, Nathalie P.

AU - Thompson, Jeffrey Douglas

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AB - Single Er3+ ions in CaWO4 coupled to nanophotonic cavities enable indistinguishable single-photon emission and spin-photon entanglement in the telecom band, forming building blocks for quantum repeater networks. However, spin decoherence from paramagnetic impurities limits fidelity. We investigate spin dynamics of near-surface Er ions (∼ 10-15 nm from surface) as a step toward quantum repeaters and memory.

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