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Open Quantum Systems Decoherence
Stabilizing quantum dynamics through coupling to a quantized environment
arXiv
Authors: Meenu Kumari, Eduardo Martin-Martinez, Achim Kempf, Shohini Ghose
Year
2017
Paper ID
24975
Status
Preprint
Abstract Read
~2 min
Abstract Words
83
Citations
N/A
Abstract
We show that introducing a small uncertainty in the parameters of quantum systems can make the dynamics of these systems robust against perturbations. Concretely, for the case where a system is subject to perturbations due to an environment, we derive a lower bound on the fidelity decay, which increases with increasing uncertainty in the state of the environment. Remarkably, this robustness in fidelity can be achieved even in fragile chaotic systems. We show that non-Markovianity is necessary for attaining robustness in the fidelity.
Why This Paper Matters
- This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
- It adds a 2017 reference point for readers tracking recent quantum research.
- We show that introducing a small uncertainty in the parameters of quantum systems can make the dynamics of these systems robust against perturbations.
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