Heralded processes on continuous-variable spaces as quantum maps

Heralding processes, which only work when a measurement on a part of the system give the good result, are particularly interesting for continuous-variables. They permit non-Gaussian transformations that are necessary for several continuous-variable quantum information tasks. However if maps and quan...

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Bibliographic Details
Main Authors: Ferreyrol Franck, Spagnolo Nicolò, Blandino Rémi, Barbieri, Marco, Tualle-Brouri Rosa
Format: Conference Proceeding
Language:English
Subjects:
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Continuity (mathematics)
QUANTUM INFORMATION
QUANTUM MECHANICS
Quantum phenomena
SPACE
TOMOGRAPHY
TRANSFORMATIONS
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Summary:Heralding processes, which only work when a measurement on a part of the system give the good result, are particularly interesting for continuous-variables. They permit non-Gaussian transformations that are necessary for several continuous-variable quantum information tasks. However if maps and quantum process tomography are commonly used to describe quantum transformations in discrete-variable space, they are much rarer in the continuous-variable domain. Also, no convenient tool for representing maps in a way more adapted to the particularities of continuous variables have yet been explored. In this paper we try to fill this gap by presenting such a tool.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4903143