Telecom-Luminescent and Room Temperature Coherent Tetrathiafulvalene-Based Qubits in Spin-Rich Solids

One of the main challenges facing quantum information science (QIS) is the development of robust qubits that can be operated under ambient conditions. Current state-of-the-art anionic nitrogen-vacancy center (NV<sup>-</sup>) defect qubits are robust enough to be operated at room temperature but lack scalability and tunability. These are areas where molecular qubits excel, although, in contrast, they typically suffer from poor air stability and fast decoherence at elevated temperatures and in magnetically noisy environments. Organic-based systems offer possible advantages to this end, although examples retaining room temperature coherence are still rare. Furthermore, most organic-based systems lack optical transitions similar to NV<sup>-</sup> centers that could allow for optical initialization and readout. Here we report two new organic-based qubit candidates that demonstrate room temperature coherence in nuclear and electron spin-rich environments. These qubits luminesce far into the near-infrared (NIR, 700-1700 nm) and telecom (∼1260-1625 nm) regions, ideal for biological sensing and communications applications, respectively.

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Publication Details

Journal
Journal of the American Chemical Society
Published
2025-12-17
DOI
https://doi.org/10.1021/jacs.5c12570
Citations
1
Primary Topic
Organic and Molecular Conductors Research
Type
article
Field-Weighted Citation Impact
0.43
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article

Telecom-Luminescent and Room Temperature Coherent Tetrathiafulvalene-Based Qubits in Spin-Rich Solids

Richard D. Schaller, Ai-Mei Zhou, Matthew D. Krzyaniak, Jan-Niklas Boyn et al.
1 citations
Journal of the American Chemical Society
Organic and Molecular Conductors Research
0.43
article

Telecom-Luminescent and Room Temperature Coherent Tetrathiafulvalene-Based Qubits in Spin-Rich Solids

Richard D. Schaller, Ai-Mei Zhou, Matthew D. Krzyaniak, Jan-Niklas Boyn, Christopher Melnychuk, Sophie W. Anferov, Lauren E. McNamara, Michael R. Wasielewski, Lei Sun, John S. Anderson, Yin Yang, Alexandra Krupinski
article en
1 citations

Abstract

One of the main challenges facing quantum information science (QIS) is the development of robust qubits that can be operated under ambient conditions. Current state-of-the-art anionic nitrogen-vacancy center (NV<sup>-</sup>) defect qubits are robust enough to be operated at room temperature but lack scalability and tunability. These are areas where molecular qubits excel, although, in contrast, they typically suffer from poor air stability and fast decoherence at elevated temperatures and in magnetically noisy environments. Organic-based systems offer possible advantages to this end, although examples retaining room temperature coherence are still rare. Furthermore, most organic-based systems lack optical transitions similar to NV<sup>-</sup> centers that could allow for optical initialization and readout. Here we report two new organic-based qubit candidates that demonstrate room temperature coherence in nuclear and electron spin-rich environments. These qubits luminesce far into the near-infrared (NIR, 700-1700 nm) and telecom (∼1260-1625 nm) regions, ideal for biological sensing and communications applications, respectively.

Journal of the American Chemical SocietyVol. 147(52)
Argonne National Laboratory (US), Nankai University (CN), University of Minnesota System (US), Westlake University (CN), University of Chicago (US), Ministry of Education (IR), Joint Center for Quantum Information and Computer Science (US), Institute for Advanced Study (DE), Institute of Natural Science (KP), Center for Nanoscale Materials
Openalex Percentile: Top 32%
Organic and Molecular Conductors Research
0.43
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