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Updated: May 15, 2026

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
Published on: August 12, 2013
On the role of internal interactions within a nonlinear coupler in the Leggett-Garg inequality violation
Joanna K Kalaga1, Anna Kowalewska-Kudłaszyk2
1Quantum Optics and Engineering Division, Institute of Physics, University of Zielona Góra, Prof. Z. Szafrana 4a, 65-516, Zielona Góra, Poland.
Abstract:
In this work, we investigate the influence of the internal interactions within the nonlinear oscillatory system on its ability to lead to the violation of the Leggett-Garg inequality when performing a set of projective measurements. We emphasize the crucial role in selecting an appropriate time interval between the consecutive projections and show that, for some types of internal interactions that effectively confine the system's dynamics to only a few states, there are entire ranges of parameters characterizing the system for which the inequality cannot be violated.
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