Witnessing objectivity on a quantum computer

Dario A. Chisholm; Guillermo García-Pérez; Matteo A.C. Rossi; Sabrina Maniscalco; G. Massimo Palma

doi:10.1088/2058-9565/ac40f3

Witnessing objectivity on a quantum computer

Dario A. Chisholm^*
, Guillermo García-Pérez
, Matteo A.C. Rossi
, Sabrina Maniscalco
, G. Massimo Palma

^*Corresponding author for this work

University of Palermo
University of Helsinki
University of Turku
National Research Council of Italy
Algorithmiq Ltd
InstituteQ —The Finnish Quantum Institute

Research output: Contribution to journal › Article › Scientific › peer-review

13 Citations (Web of Science)

Abstract

Understanding the emergence of objectivity from the quantum realm has been a long standing issue strongly related to the quantum to classical crossover. Quantum Darwinism (QD) provides an answer, interpreting objectivity as consensus between independent observers. Quantum computers provide an interesting platform for such experimental investigation of QD, fulfiling their initial intended purpose as quantum simulators. Here we assess to what degree current Noisy intermediate-scale quantum devices can be used as experimental platforms in the field of QD. We do this by simulating an exactly solvable stochastic collision model, taking advantage of the analytical solution to benchmark the experimental results.

Original language	English
Article number	015022
Pages (from-to)	1-11
Number of pages	11
Journal	Quantum Science and Technology
Volume	7
Issue number	1
DOIs	https://doi.org/10.1088/2058-9565/ac40f3
Publication status	Published - Jan 2022
MoE publication type	A1 Journal article-refereed

Keywords

collision models
objectivity
quantum computers
quantum Darwinism
quantum information

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10.1088/2058-9565/ac40f3

https://arxiv.org/abs/2110.06243

Cite this

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abstract = "Understanding the emergence of objectivity from the quantum realm has been a long standing issue strongly related to the quantum to classical crossover. Quantum Darwinism (QD) provides an answer, interpreting objectivity as consensus between independent observers. Quantum computers provide an interesting platform for such experimental investigation of QD, fulfiling their initial intended purpose as quantum simulators. Here we assess to what degree current Noisy intermediate-scale quantum devices can be used as experimental platforms in the field of QD. We do this by simulating an exactly solvable stochastic collision model, taking advantage of the analytical solution to benchmark the experimental results.",

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AU - García-Pérez, Guillermo

AU - Rossi, Matteo A.C.

AU - Maniscalco, Sabrina

AU - Palma, G. Massimo

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KW - quantum information

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Witnessing objectivity on a quantum computer

Abstract

Keywords

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