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arXiv · 1805.01777

Generalized Modular Value with Nonclassical Pointer States

Yusuf Turek
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Abstract

In this study, we investigate the advantages of non-classical pointer states in the generalized modular value scheme. We consider a typical von Neumann measurement with a discrete quantum pointer, where the pointer is a projection operator onto one of the states of the basis of the pointer Hilbert space. We separately calculate the conditional probabilities, Q_{M} factors, and signal-to-noise ratios of quadrature operators of coherent, coherent squeezed, and Schr\"odinger cat pointer states and find that the non-classical pointer states can increase the negativity of the field and precision of measurement compared with semi-classical states in generalized measurement problems characterized by the modular value.

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Yusuf Turek. 2018-05-03. Generalized Modular Value with Nonclassical Pointer States. https://doi.org/10.1140/epjd%2Fe2018-90258-8

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