Detecting non-Markovianity from continuous monitoring

Abstract

We study how non-Markovianity of an open two-level system can be detected when continuously monitoring a part of its bosonic environment. Considering a physical scenario of an atom in a lossy cavity, we demonstrate that the properties of the time-dependent flux of the photons from the cavity allows the detection of memory effects in the atomic dynamics, without requiring state nor process tomography. This framework overlaps with effective descriptions for the memory part of the environment using pseudomode methods. Our central results show how the Markovian measurement record on the environment of an enlarged open system allows to draw conclusions on the non- Markovianity of the original system of interest.

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Cited by in corpus (5)

• Optical Signatures of Non-Markovian Behaviour in Open Quantum Systems
• Maximally non-Markovian quantum dynamics without environment backflow of information
• Pseudomodes and the corresponding transformation of the temperature-dependent bath correlation function
• Collision model approach to steering of an open driven qubit
• Non-Markovian Dynamics in Ultracold Rydberg Aggregates