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arXiv · 1410.4640

Precision Measurements Using Squeezed Spin States via Two-axis Counter-twisting Interactions

Emi Yukawa·Gerard Milburn·Masahito Ueda·Kae Nemoto
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Abstract

We show that the two-axis counter twisting interaction squeezes a coherent spin state into three states of interest in quantum information, namely, the twin-Fock state, the equally-weighted superposition state, and the state that achieves the Heisenberg limit of optimal sensitivity defined by the Cramer-Rao inequality in addition to the well-known Heisenberg-limited state of spin fluctuations.

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Emi Yukawa, Gerard Milburn, Masahito Ueda, Kae Nemoto. 2014-10-17. Precision Measurements Using Squeezed Spin States via Two-axis Counter-twisting Interactions. https://doi.org/10.1103/physreva.90.062132

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