Two-Qubit Hamiltonian Tomography by Bayesian Analysis of Noisy Data
arXiv:0902.3434 · doi:10.1103/PhysRevA.80.022333
Abstract
We present an empirical strategy to determine the Hamiltonian dynamics of a two-qubit system using only initialization and measurement in a single fixed basis. Signal parameters are estimated from measurement data using Bayesian methods from which the underlying Hamiltonian is reconstructed, up to three unobservable phase factors. We extend the method to achieve full control Hamiltonian tomography for controllable systems via a multi-step approach. The technique is demonstrated and evaluated by analyzing data from simulated experiments including projection noise.
15 pages
References in corpus (5)
- Identifying an Experimental Two-State Hamiltonian to Arbitrary Accuracy
- Identifying a Two-State Hamiltonian in the Presence of Decoherence
- Implementation of Quantum Gates via Optimal Control
- Optimal Experiment Design for Quantum State and Process Tomography and Hamiltonian Parameter Estimation
- Precision characterisation of two-qubit Hamiltonians via entanglement mapping