Sensitivity of measurement-based purification processes to inner interactions

Benedetto Militello, Anna Napoli, Anna Napoli, Benedetto Militello

Research output: Contribution to journalArticlepeer-review

Abstract

The sensitivity of a repeated measurement-based purification scheme to additional undesired couplings is analyzed, focusing on the very simple and archetypical system consisting of two two-level systems interacting with a repeatedly measured one. Several regimes are considered and in the strong coupling limit (i.e., when the coupling constant of the undesired interaction is very large) the occurrence of a quantum Zeno effect is proven to dramatically jeopardize the efficiency of the purification process.
Original languageEnglish
Pages (from-to)025101-1-025101-9
Number of pages9
JournalPhysica Scripta
Volume93
Publication statusPublished - 2018

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Mathematical Physics
  • Condensed Matter Physics

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