Nonlinear extension of the quantum dynamical semigroup

Jakub Rembieliński and Paweł Caban

Department of Theoretical Physics, Faculty of Physics and Applied Informatics, University of Lodz, Pomorska 149/153, 90-236 Łódź, Poland

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Abstract

In this paper we consider deterministic nonlinear time evolutions satisfying so called convex quasi-linearity condition. Such evolutions preserve the equivalence of ensembles and therefore are free from problems with signaling. We show that if family of linear non-trace-preserving maps satisfies the semigroup property then the generated family of convex quasi-linear operations also possesses the semigroup property. Next we generalize the Gorini-Kossakowski-Sudarshan-Lindblad type equation for the considered evolution. As examples we discuss the general qubit evolution in our model as well as an extension of the Jaynes-Cummings model. We apply our formalism to spin density matrix of a charged particle moving in the electromagnetic field as well as to flavor evolution of solar neutrinos.

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[3] Efstratios Koukoutsis, Kyriakos Hizanidis, Abhay K. Ram, and George Vahala, "Quantum simulation of dissipation for Maxwell equations in dispersive media", Future Generation Computer Systems 159, 221 (2024).

[4] Yu Cao and Jianfeng Lu, "Structure-Preserving Numerical Schemes for Lindblad Equations", Journal of Scientific Computing 102 1, 27 (2025).

[5] Eyal Buks, "Disentanglement and a nonlinear Schrödinger equation", Journal of Physics A: Mathematical and Theoretical 55 35, 355303 (2022).

[6] Michael R. Geller, "Proposal for a Lorenz qubit", Scientific Reports 13 1, 14106 (2023).

[7] Marta Emilia Bielińska, Michał Eckstein, and Paweł Horodecki, "Superluminal signalling and chaos in nonlinear quantum dynamics", New Journal of Physics 27 5, 053002 (2025).

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[10] Maria Danelli and Matteo G. A. Paris, "Are intrinsic decoherence models physical theories?", Europhysics Letters 149 5, 50001 (2025).

[11] Xu Zhang and Guanrong Chen, "From classical chaotic systems to quantum qubits and qutrits", Chaos: An Interdisciplinary Journal of Nonlinear Science 35 11, 111102 (2025).

[12] Eyal Buks, "Spontaneous Disentanglement and Thermalization", Advanced Quantum Technologies 7 5, 2400036 (2024).

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[14] Pablo Martinez-Azcona, Aritra Kundu, Avadh Saxena, Adolfo del Campo, and Aurélia Chenu, "Quantum Dynamics with Stochastic Non-Hermitian Hamiltonians", Physical Review Letters 135 1, 010402 (2025).

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[18] Krzysztof Kowalski, "Linear and integrable nonlinear evolution of the qutrit", Quantum Information Processing 19 5, 145 (2020).

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[20] Jakub Rembieliński and Karol Ławniczak, "Quantum selective measurement as a quasilinear evolution", arXiv:2605.13739, (2026).

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