A tomographic approach to non-Markovian master equations

Abstract

We propose a procedure based on symplectic tomography for reconstructing the unknown parameters of a convolutionless non-Markovian Gaussian noisy evolution. Whenever the time-dependent master equation coefficients are given as a function of some unknown time-independent parameters, we show that these parameters can be reconstructed by means of a finite number of tomograms. Two different approaches towards reconstruction, integral and differential, are presented and applied to a benchmark model made of a harmonic oscillator coupled to a bosonic bath. For this model the number of tomograms needed to retrieve the unknown parameters is explicitly computed.

15 pages, 2 figures

References in corpus (3)

• Optimal quantum estimation of loss in bosonic channels
• Non-Markovian Quantum Trajectories Versus Master Equations: Finite Temperature Heat Bath
• An effective method to estimate multidimensional Gaussian states