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- Title
Linear and integrable nonlinear evolution of the qutrit.
- Authors
Kowalski, Krzysztof
- Abstract
The nonlinear generalization of the von Neumann equation preserving convexity of the state space is studied in the nontrivial case of the qutrit. This equation can be cast into the integrable classical Riccati system of nonlinear ordinary differential equations. The solutions of such system are investigated in both the linear case corresponding to the standard von Neumann equation and the nonlinear one referring to the generalization of this equation. The analyzed dynamics of the qutrit is rich and includes quasiperiodic motion, multiple equilibria and limit cycles.
- Subjects
NONLINEAR differential equations; NONLINEAR equations; CONVEXITY spaces; LIMIT cycles; NONLINEAR systems; PAINLEVE equations
- Publication
Quantum Information Processing, 2020, Vol 19, Issue 5, p1
- ISSN
1570-0755
- Publication type
Article
- DOI
10.1007/s11128-020-02640-6