Please use this identifier to cite or link to this item: https://doi.org/10.1088/0031-8949/2012/T147/014031
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dc.titleValidity of resonant two-qubit gates in the ultrastrong coupling regime of circuit quantum electrodynamics
dc.contributor.authorWang, Y.M.
dc.contributor.authorBallester, D.
dc.contributor.authorRomero, G.
dc.contributor.authorScarani, V.
dc.contributor.authorSolano, E.
dc.date.accessioned2014-10-16T09:48:22Z
dc.date.available2014-10-16T09:48:22Z
dc.date.issued2012-02
dc.identifier.citationWang, Y.M., Ballester, D., Romero, G., Scarani, V., Solano, E. (2012-02). Validity of resonant two-qubit gates in the ultrastrong coupling regime of circuit quantum electrodynamics. Physica Scripta (T147) : -. ScholarBank@NUS Repository. https://doi.org/10.1088/0031-8949/2012/T147/014031
dc.identifier.issn00318949
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/98546
dc.description.abstractWe investigate theoretically the performance of resonant two-qubit gates in the crossover from the strong to the ultrastrong coupling regime of lightmatter interaction in circuit quantum electrodynamics. Two controlled-phase (CPHASE) gate schemeswhich work well within the rotating wave-approximationare analysed while taking into account the effects of counter-rotating terms appearing in the Hamiltonian. Our numerical results show that the fidelity of the gate operation is above 96% when the ratio between the coupling strength and the resonator frequency, g/ r, is about 10%. Novel schemes are required in order to implement ultrafast quantum gates when increasing the ratio g/ r. © 2012 The Royal Swedish Academy of Sciences.
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentPHYSICS
dc.description.doi10.1088/0031-8949/2012/T147/014031
dc.description.sourcetitlePhysica Scripta
dc.description.issueT147
dc.description.page-
dc.description.codenPHSTB
dc.identifier.isiut000300640300033
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