Direct quantum process tomography via measuring sequential weak values of incompatible observables

Weak measurements constitute a powerful tool for metrology, tomography and even foundations, but in most cases could be explained classically. Here, the authors characterise a quantum channel using sequential weak value measurements of two incompatible observables utilising two-photon quantum interf...

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Bibliographic Details
Main Authors: Yosep Kim, Yong-Su Kim, Sang-Yun Lee, Sang-Wook Han, Sung Moon, Yoon-Ho Kim, Young-Wook Cho
Format: Article
Language:English
Published: Nature Publishing Group 2018-01-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-017-02511-2
Description
Summary:Weak measurements constitute a powerful tool for metrology, tomography and even foundations, but in most cases could be explained classically. Here, the authors characterise a quantum channel using sequential weak value measurements of two incompatible observables utilising two-photon quantum interference.
ISSN:2041-1723