Refereed journal article or data article (A1)
Witnessing objectivity on a quantum computer
List of Authors: Chisholm Dario A., García-Pérez Guillermo, Rossi Matteo A.C., Maniscalco Sabrina, Palma G. Massimo
Publisher: IOP Publishing Ltd
Publication year: 2022
Journal: Quantum Science and Technology
Journal name in source: Quantum Science and Technology
Article number: 015022
Volume number: 7
Issue number: 1
ISSN: 2058-9565
eISSN: 2058-9565
DOI: http://dx.doi.org/10.1088/2058-9565/ac40f3
URL: https://iopscience.iop.org/article/10.1088/2058-9565/ac40f3
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.