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 journalArticle

34 Citations (Scopus)
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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 languageEnglish
Article number090402
Pages (from-to)1-5
Number of pages5
JournalPhysical Review Letters
Volume114
Issue number9
DOIs
Publication statusPublished - 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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