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BibTex format

@article{Yadin:2018:10.1103/physrevx.8.041038,
author = {Yadin, B and Binder, FC and Thompson, J and Narasimhachar, V and Gu, M and Kim, MS},
doi = {10.1103/physrevx.8.041038},
journal = {Physical Review X},
title = {Operational resource theory of continuous-variable nonclassicality},
url = {http://dx.doi.org/10.1103/physrevx.8.041038},
volume = {8},
year = {2018}
}

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TY  - JOUR
AB  - Genuinely quantum states of a harmonic oscillator may be distinguished from their classical counterparts by the Glauber-Sudarshan P representation—a state lacking a positive P function is said to be nonclassical. In this paper, we propose a general operational framework for studying nonclassicality as a resource in networks of passive linear elements and measurements with feed forward. Within this setting, we define new measures of nonclassicality based on the quantum fluctuations of quadratures, as well as the quantum Fisher information of quadrature displacements. These measures lead to fundamental constraints on the manipulation of nonclassicality, especially its concentration into subsystems, that apply to generic multimode non-Gaussian states. Special cases of our framework include no-go results in the concentration of squeezing and a complete hierarchy of nonclassicality for single-mode Gaussian states.
AU  - Yadin,B
AU  - Binder,FC
AU  - Thompson,J
AU  - Narasimhachar,V
AU  - Gu,M
AU  - Kim,MS
DO  - 10.1103/physrevx.8.041038
PY  - 2018///
SN  - 2160-3308
TI  - Operational resource theory of continuous-variable nonclassicality
T2  - Physical Review X
UR  - http://dx.doi.org/10.1103/physrevx.8.041038
UR  - http://hdl.handle.net/10044/1/65042
VL  - 8
ER  -

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Professor Myungshik Kim

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