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arXiv · 1105.4740

Scalable Spin Amplification with a Gain over a Hundred

Makoto Negoro·Kenichiro Tateishi·Akinori Kagawa·Masahiro Kitagawa
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Abstract

We propose a scalable and practical implementation of spin amplification which does not require individual addressing nor a specially tailored spin network. We have demonstrated a gain of 140 in a solid-state nuclear spin system of which the spin polarization has been increased to 0.12 using dynamic nuclear polarization with photoexcited triplet electron spins. Spin amplification scalable to a higher gain opens the door to the single spin measurement for a readout of quantum computers as well as practical applications of nuclear magnetic resonance (NMR) spectroscopy to infinitesimal samples which have been concealed by thermal noise.

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Makoto Negoro, Kenichiro Tateishi, Akinori Kagawa, Masahiro Kitagawa. 2011-05-24. Scalable Spin Amplification with a Gain over a Hundred. https://doi.org/10.1103/physrevlett.107.050503

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