Simulating the vibrational quantum dynamics of molecules using photonics

dc.contributor.authorSparrow, Chris
dc.contributor.authorMartín-López, Enrique
dc.contributor.authorMaraviglia, Nicola
dc.contributor.authorNeville, Alex
dc.contributor.authorHarrold, Christopher
dc.contributor.authorCarolan, Jacques
dc.contributor.authorJoglekar, Yogesh N.
dc.contributor.authorHashimoto, Toshikazu
dc.contributor.authorMatsuda, Nobuyuki
dc.contributor.authorO'Brien, Jeremy L.
dc.contributor.authorTew, David P.
dc.contributor.authorLaing, Anthony
dc.contributor.departmentPhysics, School of Scienceen_US
dc.date.accessioned2019-03-20T14:25:19Z
dc.date.available2019-03-20T14:25:19Z
dc.date.issued2018
dc.description.abstractAdvances in control techniques for vibrational quantum states in molecules present new challenges for modelling such systems, which could be amenable to quantum simulation methods. Here, by exploiting a natural mapping between vibrations in molecules and photons in waveguides, we demonstrate a reprogrammable photonic chip as a versatile simulation platform for a range of quantum dynamic behaviour in different molecules. We begin by simulating the time evolution of vibrational excitations in the harmonic approximation for several four-atom molecules, including H2CS, SO3, HNCO, HFHF, N4 and P4. We then simulate coherent and dephased energy transport in the simplest model of the peptide bond in proteins—N-methylacetamide—and simulate thermal relaxation and the effect of anharmonicities in H2O. Finally, we use multi-photon statistics with a feedback control algorithm to iteratively identify quantum states that increase a particular dissociation pathway of NH3. These methods point to powerful new simulation tools for molecular quantum dynamics and the field of femtochemistry.en_US
dc.eprint.versionAuthor's manuscripten_US
dc.identifier.citationSparrow, C., Martín-López, E., Maraviglia, N., Neville, A., Harrold, C., Carolan, J., … Laing, A. (2018). Simulating the vibrational quantum dynamics of molecules using photonics. Nature, 557(7707), 660. https://doi.org/10.1038/s41586-018-0152-9en_US
dc.identifier.urihttps://hdl.handle.net/1805/18651
dc.language.isoenen_US
dc.publisherNatureen_US
dc.relation.isversionof10.1038/s41586-018-0152-9en_US
dc.relation.journalNatureen_US
dc.rightsPublisher Policyen_US
dc.sourceAuthoren_US
dc.subjectvibrational quantum dynamicsen_US
dc.subjectmoleculesen_US
dc.subjectphotonicsen_US
dc.titleSimulating the vibrational quantum dynamics of molecules using photonicsen_US
dc.typeArticleen_US
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