Direct Estimation of Single- and Two-Qubit Hamiltonians and Relaxation Rates

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Direct Estimation of Single- and Two-Qubit Hamiltonians and Relaxation Rates

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Title: Direct Estimation of Single- and Two-Qubit Hamiltonians and Relaxation Rates
Author: Aspuru-Guzik, Alan; Rezakhani, Ali T.; Mohseni, Masoud

Note: Order does not necessarily reflect citation order of authors.

Citation: Mohseni, Masoud, Ali T. Rezakhani, and Alan Aspuru-Guzik. 2008. Direct estimation of single- and two-qubit Hamiltonians and relaxation rates. Physical Review A 77(4): 042320.
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Abstract: We provide an approach for characterization of quantum Hamiltonian systems via utilizing a single measurement device. Specifically, we demonstrate how external quantum correlations can be used for Hamiltonian identification tasks. We explicitly introduce experimental procedures for direct estimation of single- and two-qubit Hamiltonian parameters, and also for simultaneous estimation of transverse and longitudinal relaxation rates, using a single Bell-state analyzer. An advantage of our method over the earlier approaches is that it has a built-in feature which makes it suitable for partial characterization of Hamiltonian parameters.
Published Version: doi:10.1103/PhysRevA.77.042320
Other Sources: http://arxiv.org/abs/0712.0424v3
Terms of Use: This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:4646033
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