研究目的
To propose a general operational framework for studying nonclassicality as a resource in networks of passive linear elements and measurements with feed forward, and to define new measures of nonclassicality based on quantum fluctuations of quadratures and quantum Fisher information of quadrature displacements.
研究成果
The paper concludes with the establishment of a systematic understanding of nonclassicality in the continuous-variable regime, proposing measures of nonclassicality and deriving constraints on the manipulation of nonclassicality. It highlights the operational interpretation of continuous-variable nonclassicality as a resource for metrological applications and suggests directions for future research.
研究不足
The technical constraints include the limitation to networks of passive linear elements and measurements with feed forward. Potential areas for optimization include the extension to more general quantum operations and the consideration of non-Gaussian states.
