Thermal-difference states of light: true states of heralded photons

We introduce a three-parameter family of single-mode optical states whose density operator is a weighted difference of two thermal states, the thermal-difference states. We identify the parameter values for which these states have a negative non-singular P-function, implying they are nonclassical. W...

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Bibliographic Details
Main Authors: Horoshko Dmitri, De Bièvre Stephan, Patera Giuseppe, Kolobov Mikhail
Format: Article
Language:English
Published: EDP Sciences 2019-01-01
Series:EPJ Web of Conferences
Online Access:https://doi.org/10.1051/epjconf/201919800010