# Nature and Origin of Operators Entering the Master Equation of an Open Quantum System

@article{Spaventa2022NatureAO, title={Nature and Origin of Operators Entering the Master Equation of an Open Quantum System}, author={Giovanni Spaventa and Paola Verrucchi}, journal={Open Syst. Inf. Dyn.}, year={2022}, volume={29}, pages={2250010:1-2250010:18} }

By exploiting the peculiarities of a recently introduced formalism for describing open quantum systems (the parametric representation with environmental coherent states) we derive an equation of motion for the reduced density operator of an open quantum system that has the same structure of the celebrated Gorini–Kossakowski–Sudarshan–Lindblad equation, but holds regardless of Markovianity being assumed. The operators in our result have explicit expressions in terms of the Hamiltonian describing…

## 2 Citations

### Benchmarking the cosmological master equations

- PhysicsThe European Physical Journal C
- 2022

Master equations are commonly employed in cosmology to model the effect of additional degrees of freedom, treated as an “environment”, onto a given “system”. However, they rely on assumptions that…

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