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dc.contributor.authorOkamoto, Jun-ichien_US
dc.contributor.authorHu, Wanzhengen_US
dc.contributor.authorCavalleri, Andreaen_US
dc.contributor.authorMathey, Ludwigen_US
dc.date.accessioned2018-10-05T17:40:04Z
dc.date.available2018-10-05T17:40:04Z
dc.date.issued2017-10
dc.identifier.citationJun-ichi Okamoto, Wanzheng Hu, Andrea Cavalleri, Ludwig Mathey. 2017. "Transiently enhanced interlayer tunneling in optically driven high- superconductors." Physical Review B, v. 96, Issue 14, https://doi.org/10.1103/PhysRevB.96.144505
dc.identifier.issn2469-9950
dc.identifier.issn2469-9969
dc.identifier.urihttps://hdl.handle.net/2144/31458
dc.description.abstractRecent pump-probe experiments reported an enhancement of superconducting transport along the c axis of underdoped YBa2Cu3O6+δ (YBCO), induced by a midinfrared optical pump pulse tuned to a specific lattice vibration. To understand this transient nonequilibrium state, we develop a pump-probe formalism for a stack of Josephson junctions, and we consider the tunneling strengths in the presence of modulation with an ultrashort optical pulse. We demonstrate that a transient enhancement of the Josephson coupling can be obtained for pulsed excitation and that this can be even larger than in a continuously driven steady state. Especially interesting is the conclusion that the effect is largest when the material is parametrically driven at a frequency immediately above the plasma frequency, in agreement with what is found experimentally. For bilayer Josephson junctions, an enhancement similar to that experimentally is predicted below the critical temperature Tc. This model reproduces the essential features of the enhancement measured below Tc. To reproduce the experimental results above Tc, we will explore extensions of this model, such as in-plane and amplitude fluctuations, elsewhere.en_US
dc.description.sponsorshipDeutsche Forschungsgemeinschaft; SFB 925; EXC 1074; Joachim Herz Stiftungen_US
dc.relation.ispartofPhysical Review B
dc.relation.isversionofhttps://doi.org/10.1103/PhysRevB.96.144505
dc.subjectQuantum physicsen_US
dc.subjectSuperconductivityen_US
dc.subjectUltrafast scienceen_US
dc.subjectNonlinear phononicsen_US
dc.subjectStructural dynamicsen_US
dc.titleTransiently enhanced interlayer tunneling in optically driven high-Tc superconductorsen_US
dc.typeArticleen_US
dc.description.versionFirst author draften_US
dc.identifier.doihttps://doi.org/10.1103/PhysRevB.96.144505
pubs.elements-sourcecrossrefen_US
pubs.notesEmbargo: No embargoen_US
pubs.organisational-groupBoston Universityen_US
pubs.organisational-groupBoston University, College of Arts & Sciencesen_US
pubs.organisational-groupBoston University, College of Arts & Sciences, Department of Physicsen_US
pubs.publication-statusPublisheden_US
dc.date.online2017-10-10
dc.date.online2017-10-10
dc.identifier.orcid0000-0002-0926-0760 (Hu, Wanzheng)


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