Open quantum systems integrable by partial commutativity

Abstract

The article provides a framework to solve linear differential equations based on partial commutativity which is introduced by means of the Fedorov theorem. The framework is applied to specific types of three-level and four-level quantum systems. The efficiency of the method is evaluated and discussed. The Fedorov theorem appears to answer the need for methods which allow to study dynamical maps corresponding with time-dependent generators. By applying this method, one can investigate countless examples of dissipative systems such that the relaxation rates depend on time.

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• Entanglement dynamics governed by time-dependent quantum generators
• Quantum decoherence dynamics in stochastically fluctuating environments
• Quantum State Tomography of Four-Level Systems with Noisy Measurements