Reading a Qubit Quantum State with a Quantum Meter: Time Unfolding of Quantum Darwinism and Quantum Information Flux

Gioacchino Massimo Palma, Salvatore Lorenzo, G. Massimo Palma, Mauro Paternostro

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)1950023-
Number of pages13
JournalOPEN SYSTEMS & INFORMATION DYNAMICS
Volume26
Publication statusPublished - 2019

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Mathematical Physics

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