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Open Quantum Systems Decoherence
Characterizing quantum dynamics with initial system-environment correlations
arXiv
Authors: Martin Ringbauer, Christopher J. Wood, Kavan Modi, Alexei Gilchrist, Andrew G. White, Alessandro Fedrizzi
Year
2014
Paper ID
46854
Status
Preprint
Abstract Read
~2 min
Abstract Words
74
Citations
N/A
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 generalised channel that treats preparation procedures as inputs---from measurement of the system alone, despite its coupling to the environment. We introduce novel quantitative measures for determining the strength of initial correlations, and to allow an experiment to be optimised in regards to its environment.
Why This Paper Matters
- This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
- It adds a 2014 reference point for readers tracking recent quantum research.
- We fully characterize the reduced dynamics of an open quantum system initially correlated with its environment.
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