Nature Communications (Nov 2016)

A strict experimental test of macroscopic realism in a superconducting flux qubit

  • George C. Knee,
  • Kosuke Kakuyanagi,
  • Mao-Chuang Yeh,
  • Yuichiro Matsuzaki,
  • Hiraku Toida,
  • Hiroshi Yamaguchi,
  • Shiro Saito,
  • Anthony J. Leggett,
  • William J. Munro

DOI
https://doi.org/10.1038/ncomms13253
Journal volume & issue
Vol. 7, no. 1
pp. 1 – 5

Abstract

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Objective collapse theories are formulations of quantum physics that attempt to solve the measurement problem through modified dynamical laws. Here, the authors constrain such theories by testing a generalization of the Leggett-Garg inequality in a superconducting flux qubit experiment.