Mechanical Multiplexer of Nuclear Spin States

A spin 1/2 is the simplest system that has been believed to support a single two-level quantum system, represented by a single resonance. We experimentally demonstrate that a spin-1/2 nucleus of ^{19}F in C_{6}F_{6} exhibits an extra resonance corresponding to the emergence of the states, by mechanically rotating a sample and a coil in nuclear magnetic resonance (NMR) measurements. On the basis of the Floquet formalism, we identify the emergence of the extra two-level state due to the temporal periodicity generated by the mechanical rotation (mechanical spin multiplexing) and derive an operator algebra analogous to the planar rotor algebra in an effective description of the system. The observed multiplexing allows a single spin 1/2 to carry more than two states and potentially enabling the processing of multiple quantum bits on a single spin.

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Publication Details

Journal
Physical Review Letters
Published
2025-04-03
DOI
https://doi.org/10.1103/physrevlett.134.130603
Citations
1
Primary Topic
Quantum and electron transport phenomena
Type
article
Field-Weighted Citation Impact
1.25

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article

Mechanical Multiplexer of Nuclear Spin States

Hiroyuki Chudo, Eiji Saitoh, Mamoru Matsuo, Masaki Imai et al.
1 citations
Physical Review Letters
Quantum and electron transport phenomena
1.25
article

Mechanical Multiplexer of Nuclear Spin States

Hiroyuki Chudo, Eiji Saitoh, Mamoru Matsuo, Masaki Imai, Naoto Yokoi, Sadamichi Maekawa, Jun Suzuki, Masahiro Sato, K. Harii
article en
1 citations

Abstract

A spin 1/2 is the simplest system that has been believed to support a single two-level quantum system, represented by a single resonance. We experimentally demonstrate that a spin-1/2 nucleus of ^{19}F in C_{6}F_{6} exhibits an extra resonance corresponding to the emergence of the states, by mechanically rotating a sample and a coil in nuclear magnetic resonance (NMR) measurements. On the basis of the Floquet formalism, we identify the emergence of the extra two-level state due to the temporal periodicity generated by the mechanical rotation (mechanical spin multiplexing) and derive an operator algebra analogous to the planar rotor algebra in an effective description of the system. The observed multiplexing allows a single spin 1/2 to carry more than two states and potentially enabling the processing of multiple quantum bits on a single spin.

Physical Review LettersVol. 134(13)
Japan Atomic Energy Agency (JP), Chiba University (JP), Tohoku University (JP), University of Electro-Communications (JP), National Institutes for Quantum Science and Technology (JP), RIKEN Center for Emergent Matter Science (JP), University of Chinese Academy of Sciences (CN), The University of Tokyo (JP)
University of Tokyo, Japan Society for the Promotion of Science, Japan Science and Technology Agency, Core Research for Evolutional Science and Technology, Exploratory Research for Advanced Technology
Affordable and clean energy
Openalex Percentile: Top 23%
Quantum and electron transport phenomena
1.25
DOISourceOpenAlex
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