https://doi.org/10.1140/epjc/s10052-024-12620-0
Regular Article - Theoretical Physics
Quantum spread complexity in neutrino oscillations
1
Centre for Astro-Particle Physics (CAPP) and Department of Physics, University of Johannesburg, PO Box 524, 2006, Auckland Park, South Africa
2
High Energy Physics, Cosmology and Astrophysics Theory Group and The Laboratory for Quantum Gravity and Strings, Department of Mathematics and Applied Mathematics, University of Cape Town, Cape Town, South Africa
3
Department of Mathematics and Natural Sciences, Brac University, Dhaka, Bangladesh
4
Department of Physics, The George Washington University, 20052, Washington, DC, USA
5
National Institute for Theoretical and Computational Sciences (NITheCS), Private Bag X1, Matieland, South Africa
Received:
24
December
2023
Accepted:
25
February
2024
Published online:
12
March
2024
Quantum information theory has recently emerged as a flourishing area of research and quantum complexity, one of its powerful measures, is being applied for investigating complex systems in many areas of physics. Its application to practical physical situations, however, is still few and far between. Neutrino flavor oscillation is a widely studied physical phenomena with far reaching consequences in understanding the standard model of particle physics and to search for physics beyond it. Oscillation arises because of mixing between the flavor and mass eigenstates, and their evolution over time. It is an inherent quantum system for which flavor transitions are traditionally studied with probabilistic measures. We have applied quantum complexity formalism as an alternate measure to study neutrino oscillations. In particular, quantum spread complexity revealed additional information on the violation of charge-parity symmetry in the neutrino sector. Our results indicate that complexity favors the maximum violation of charge-parity, hinted recently by experimental data.
© The Author(s) 2024
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Funded by SCOAP3.
