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Requirements for Two-source Entanglement Concentration by Mihai Vidrighin; Tim J. Bartley; Gaia Donati; Xian-Min Jin; Marco Barbieri; W. Steven Kolthammer; Animesh Datta; Ian A. Walmsley is a scholarly article available to read on EtoBox.

What is Requirements for Two-source Entanglement Concentration about?

## Abstract Entanglement enhancement is a key task for quantum technologies. This operation performed on states produced by parametric down-conversion sources has been the object of several recent experimental investigations. In particular, conditional preparation by photon-subtraction has been shown to improve the entanglement of these states. Here we analyse the role played by non-Gaussian and Gaussian measurements in more general entanglement concentration operations performed on a pair of two-mode squeezed vacua. We find stringent requirements for achieving an improved entanglement enhancement by measuring jointly these two resource states.

Author

Mihai Vidrighin; Tim J. Bartley; Gaia Donati; Xian-Min Jin; Marco Barbieri; W. Steven Kolthammer; Animesh Datta; Ian A. Walmsley

Publisher

Portico

Published

2013

Language

EN