Effective Strategies for Identifying Model Parameters for Open Quantum Systems

TL;DR

This paper investigates how to identify parameters in open quantum systems, focusing on two-level dephasing models, and compares strategies for extracting these parameters from limited, noisy data.

Contribution

It introduces methods for parameter identification in open quantum systems and compares their effectiveness under realistic experimental conditions.

Findings

Full information retrieval depends on system conditions.

Simulated experiments reveal the effectiveness of different strategies.

Certain approaches outperform others in noisy, limited data scenarios.

Abstract

The problem of identifiability of model parameters for open quantum systems is considered by investigating two-level dephasing systems. We discuss under which conditions full information about the Hamiltonian and dephasing parameters can be obtained. Using simulated experiments several different strategies for extracting model parameters from limited and noisy data are compared.