Sensitivity of measurement-based purification processes to inner interactions

Benedetto Militello; Anna Napoli; Anna Napoli; Benedetto Militello

Sensitivity of measurement-based purification processes to inner interactions

Benedetto Militello, Anna Napoli, Anna Napoli, Benedetto Militello

Fisica e Chimica - Emilio Segrè

Research output: Contribution to journal › Article › peer-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 language	English
Pages (from-to)	025101-1-025101-9
Number of pages	9
Journal	Physica Scripta
Volume	93
Publication status	Published - 2018

All Science Journal Classification (ASJC) codes

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

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title = "Sensitivity of measurement-based purification processes to inner interactions",

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.",

author = "Benedetto Militello and Anna Napoli and Anna Napoli and Benedetto Militello",

year = "2018",

language = "English",

volume = "93",

pages = "025101--1--025101--9",

journal = "Physica Scripta",

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T1 - Sensitivity of measurement-based purification processes to inner interactions

AU - Militello, Benedetto

AU - Napoli, Anna

AU - Militello, Benedetto

PY - 2018

Y1 - 2018

N2 - 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.

AB - 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.

UR - http://hdl.handle.net/10447/290189

UR - http://iopscience.iop.org/article/10.1088/1402-4896/aa9c38/pdf

M3 - Article

VL - 93

SP - 025101-1-025101-9

JO - Physica Scripta

JF - Physica Scripta

SN - 0031-8949

ER -