TY - JOUR
T1 - Long-lived electronic spin qubits in single-walled carbon nanotubes
AU - Chen, Jia Shiang
AU - Trerayapiwat, Kasidet Jing
AU - Sun, Lei
AU - Krzyaniak, Matthew D.
AU - Wasielewski, Michael R.
AU - Rajh, Tijana
AU - Sharifzadeh, Sahar
AU - Ma, Xuedan
N1 - Publisher Copyright:
© 2023, UChicago Argonne, LLC, Operator of Argonne National Laboratory.
PY - 2023/12
Y1 - 2023/12
N2 - Electron spins in solid-state systems offer the promise of spin-based information processing devices. Single-walled carbon nanotubes (SWCNTs), an all-carbon one-dimensional material whose spin-free environment and weak spin-orbit coupling promise long spin coherence times, offer a diverse degree of freedom for extended range of functionality not available to bulk systems. A key requirement limiting spin qubit implementation in SWCNTs is disciplined confinement of isolated spins. Here, we report the creation of highly confined electron spins in SWCNTs via a bottom-up approach. The record long coherence time of 8.2 µs and spin-lattice relaxation time of 13 ms of these electronic spin qubits allow demonstration of quantum control operation manifested as Rabi oscillation. Investigation of the decoherence mechanism reveals an intrinsic coherence time of tens of milliseconds. These findings evident that combining molecular approaches with inorganic crystalline systems provides a powerful route for reproducible and scalable quantum materials suitable for qubit applications.
AB - Electron spins in solid-state systems offer the promise of spin-based information processing devices. Single-walled carbon nanotubes (SWCNTs), an all-carbon one-dimensional material whose spin-free environment and weak spin-orbit coupling promise long spin coherence times, offer a diverse degree of freedom for extended range of functionality not available to bulk systems. A key requirement limiting spin qubit implementation in SWCNTs is disciplined confinement of isolated spins. Here, we report the creation of highly confined electron spins in SWCNTs via a bottom-up approach. The record long coherence time of 8.2 µs and spin-lattice relaxation time of 13 ms of these electronic spin qubits allow demonstration of quantum control operation manifested as Rabi oscillation. Investigation of the decoherence mechanism reveals an intrinsic coherence time of tens of milliseconds. These findings evident that combining molecular approaches with inorganic crystalline systems provides a powerful route for reproducible and scalable quantum materials suitable for qubit applications.
UR - http://www.scopus.com/inward/record.url?scp=85148115016&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85148115016&partnerID=8YFLogxK
U2 - 10.1038/s41467-023-36031-z
DO - 10.1038/s41467-023-36031-z
M3 - Article
C2 - 36792597
AN - SCOPUS:85148115016
SN - 2041-1723
VL - 14
JO - Nature communications
JF - Nature communications
IS - 1
M1 - 848
ER -