Characterizing quantum dynamics with initial system-environment correlations

M. Ringbauer; C. J. Wood; K. Modi; A. Gilchrist; A. G. White; A. Fedrizzi

doi:10.1103/PhysRevLett.114.090402

Characterizing quantum dynamics with initial system-environment correlations

M. Ringbauer^*, C. J. Wood, K. Modi, A. Gilchrist, A. G. White, A. Fedrizzi

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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Abstract

We fully characterize the reduced dynamics of an open quantum system initially correlated with its environment. Using a photonic qubit coupled to a simulated environment, we tomographically reconstruct a superchannel - a generalized channel that treats preparation procedures as inputs - from measurement of the system alone. We introduce novel quantitative measures for determining the strength of initial correlations, and to allow an experiment to be optimized in regard to its environment.

Original language	English
Article number	090402
Pages (from-to)	1-5
Number of pages	5
Journal	Physical Review Letters
Volume	114
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevLett.114.090402
Publication status	Published - 4 Mar 2015

Bibliographical note

Ringbauer, M., Wood, C. J., Modi, K., Gilchrist, A., White, A. G. & Fedrizzi, A., Physical review letters, 114, 090402, 2015. Copyright 2015 by the American Physical Society. The original article can be found at http://dx.doi.org/10.1103/PhysRevLett.114.090402

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10.1103/PhysRevLett.114.090402

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AU - Fedrizzi, A.

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Characterizing quantum dynamics with initial system-environment correlations

Abstract

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ARC Centre of Excellence for Quantum Engineered Systems (EQuS) (RAAP)

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Characterizing quantum dynamics with initial system-environment correlations

Abstract

Bibliographical note

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ARC Centre of Excellence for Quantum Engineered Systems (EQuS) (RAAP)

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