Optimal Purification of Gaussian-Modulated Thermal States

Xiaobin Zhao; Giulio Chiribella

doi:10.1364/QIM.2017.QT6A.64

Quantum Information and Measurement (QIM) 2017
OSA Technical Digest (online) (Optica Publishing Group, 2017),
paper QT6A.64
•https://doi.org/10.1364/QIM.2017.QT6A.64

Optimal Purification of Gaussian-Modulated Thermal States

Xiaobin Zhao and Giulio Chiribella

Quantum Information and Measurement 2017

Paris France
5–7 April 2017
ISBN: 978-1-943580-26-2

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X. Zhao and G. Chiribella, "Optimal Purification of Gaussian-Modulated Thermal States," in Quantum Information and Measurement (QIM) 2017, OSA Technical Digest (online) (Optica Publishing Group, 2017), paper QT6A.64.

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Abstract

We establish the ultimate quantum limits for the purification of arbitrary multi-mode thermal states with Gaussian modulation. We determine when probabilistic strategies outperform the optimal deterministic strategies.

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