Indirect quantum tomography of quadratic Hamiltonians

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dc.contributor.author Burgarth, Daniel
dc.contributor.author Maruyama, Koji
dc.contributor.author Nori, Franco
dc.date.accessioned 2011-09-26T14:05:38Z
dc.date.available 2011-09-26T14:05:38Z
dc.date.issued 2011-01-14
dc.identifier.citation Burgarth , D , Maruyama , K & Nori , F 2011 , ' Indirect quantum tomography of quadratic Hamiltonians ' New Journal of Physics , vol 13 . en
dc.identifier.issn 1367-2630
dc.identifier.other PURE: 171122
dc.identifier.other dspace: 2160/7592
dc.identifier.uri http://hdl.handle.net/2160/7592
dc.description Burgarth, D., Maruyama, K., Nori, F. (2011). Indirect quantum tomography of quadratic Hamiltonians, New Journal of Physics 13, 013019 en
dc.description.abstract A number of many-body problems can be formulated using Hamiltonians that are quadratic in the creation and annihilation operators. Here, we show how such quadratic Hamiltonians can be efficiently estimated indirectly, employing very few resources. We found that almost all the properties of the Hamiltonian are determined by its surface and that these properties can be measured even if the system can only be initialized to a mixed state. Therefore, our method can be applied to various physical models, with important examples including coupled nano-mechanical oscillators, hopping fermions in optical lattices and transverse Ising chains. en
dc.language.iso eng
dc.relation.ispartof New Journal of Physics en
dc.title Indirect quantum tomography of quadratic Hamiltonians en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1088/1367-2630/13/1/013019
dc.contributor.institution Institute of Mathematics & Physics (ADT) en
dc.contributor.institution Quantum Systems, Information and Control en
dc.description.status Peer reviewed en


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