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dc.contributor.authorFu, Shuangshuang
dc.contributor.authorCarvalho, Andre R. R.
dc.contributor.authorHush, Michael R.
dc.contributor.authorJames, Matthew R.
dc.date.accessioned2017-07-28T02:31:28Z
dc.date.available2017-07-28T02:31:28Z
dc.date.issued2016
dc.identifier.issn2469-9926
dc.identifier.doi10.1103/PhysRevA.93.023809
dc.identifier.urihttp://hdl.handle.net/10072/342760
dc.description.abstractWe present a theoretical model for a Kerr-like interaction between two registers of a compound gradient echo memory (GEM). This type of interaction is known to generate cross-phase modulation (XPM) between optical fields, an effect that is limited by the typically small values of nonlinearities in crystals. Here we show that in GEM systems the phase shift increases linearly with the interaction time and quadratically with the strength of the field. Increasing storage (interaction) times would then lead to stronger XPM effects even with fields with very low intensity. This interaction also generates two other effects: entanglement between the registers, which depends on the strength of the interaction and its spatial profile, and an interaction-induced gradient. We show that the latter produces leakage during the storage stage depending on the shape of the stored pulses, an undesirable consequence that can be minimized by carefully designing the temporal profile of the input fields.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.relation.ispartofpagefrom023809-1
dc.relation.ispartofpageto023809-9
dc.relation.ispartofissue2
dc.relation.ispartofjournalPhysical Review A
dc.relation.ispartofvolume93
dc.subject.fieldofresearchOptical Physics not elsewhere classified
dc.subject.fieldofresearchcode020599
dc.titleCross-phase modulation and entanglement in a compound gradient echo memory
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.hasfulltextNo Full Text
gro.griffith.authorRibeiro de Carvalho, Andre R.


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