期刊
PHYSICAL REVIEW A
卷 80, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.80.022333
关键词
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资金
- EPSRC [EP/D07195X/1]
- Scottish Universities Physics Alliance (SUPA)
- Quantum Information Scotland network (QUISCO)
- National Research Foundation and Ministry of Education, Singapore
- Engineering and Physical Sciences Research Council [EP/D07195X/1] Funding Source: researchfish
- EPSRC [EP/D07195X/1] Funding Source: UKRI
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 multistep approach. The technique is demonstrated and evaluated by analyzing data from simulated experiments including projection noise.
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