### Abstract

Quantum non-Markovianity and quantum Darwinism are two phenomena linked by a common theme: the flux of quantum information between a quantum system and the quantum environment it interacts with. In this work, making use of a quantum collision model, a formalism initiated by Sudarshan and his school, we will analyse the efficiency with which the information about a single qubit gained by a quantum harmonic oscillator, acting as a meter, is transferred to a bosonic environment. We will show how, in some regimes, such quantum information flux is inefficient, leading to the simultaneous emergence of non-Markovian and non-darwinistic behaviours.

Original language | English |
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Pages (from-to) | 1950023- |

Number of pages | 13 |

Journal | OPEN SYSTEMS & INFORMATION DYNAMICS |

Volume | 26 |

Publication status | Published - 2019 |

### All Science Journal Classification (ASJC) codes

- Statistical and Nonlinear Physics
- Statistics and Probability
- Mathematical Physics

## Fingerprint Dive into the research topics of 'Reading a Qubit Quantum State with a Quantum Meter: Time Unfolding of Quantum Darwinism and Quantum Information Flux'. Together they form a unique fingerprint.

## Cite this

Palma, G. M., Lorenzo, S., Palma, G. M., & Paternostro, M. (2019). Reading a Qubit Quantum State with a Quantum Meter: Time Unfolding of Quantum Darwinism and Quantum Information Flux.

*OPEN SYSTEMS & INFORMATION DYNAMICS*,*26*, 1950023-.