Fleischmann, Ragnar

[["dc.bibliographiccitation.artnumber","073045"],["dc.bibliographiccitation.issue","7"],["dc.bibliographiccitation.journal","New Journal of Physics"],["dc.bibliographiccitation.volume","11"],["dc.contributor.affiliation","Ng, G S;"],["dc.contributor.affiliation","Hennig, H;"],["dc.contributor.affiliation","Fleischmann, R;"],["dc.contributor.affiliation","Kottos, T;"],["dc.contributor.affiliation","Geisel, T;"],["dc.contributor.author","Ng, G. S."],["dc.contributor.author","Hennig, Holger"],["dc.contributor.author","Fleischmann, Ragnar"],["dc.contributor.author","Kottos, Tsampikos"],["dc.contributor.author","Geisel, Theo"],["dc.date.accessioned","2018-11-07T08:27:41Z"],["dc.date.available","2018-11-07T08:27:41Z"],["dc.date.issued","2009"],["dc.date.updated","2022-02-09T18:32:47Z"],["dc.description.abstract","We study the decay of an atomic Bose-Einstein condensate (BEC) population N(tau) from the leaking boundaries of an optical lattice (OL). For a rescaled interatomic interaction strength Lambda > Lambda(b), discrete breathers (DBs) are created that prevent the atoms from reaching the leaking boundaries. Collisions of other lattice excitations with the outermost DBs result in avalanches, i.e. steps in N(tau), which for a whole range of Lambda-values follow a scale-free distribution P(J = delta N) similar to 1/J(alpha). A theoretical analysis of the mixed phase space of the system indicates that 1 < alpha < 3, in agreement with our numerical findings."],["dc.description.sponsorship","United States-Israel Binational Science Foundation (BSF); DFG [760]"],["dc.identifier.doi","10.1088/1367-2630/11/7/073045"],["dc.identifier.eissn","1367-2630"],["dc.identifier.fs","509673"],["dc.identifier.isi","000268324700009"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?goescholar/4056"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/16259"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","1367-2630"],["dc.relation.orgunit","Fakultät für Physik"],["dc.rights.access","openAccess"],["dc.rights.uri","https://goedoc.uni-goettingen.de/licenses"],["dc.subject.ddc","530"],["dc.title","Avalanches of Bose-Einstein condensates in leaking optical lattices"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","021119"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","PHYSICAL REVIEW E"],["dc.bibliographiccitation.volume","84"],["dc.contributor.author","Zheng, Mei C."],["dc.contributor.author","Ellis, Fred M."],["dc.contributor.author","Kottos, Tsampikos"],["dc.contributor.author","Fleischmann, Ragnar"],["dc.contributor.author","Geisel, Theo"],["dc.contributor.author","Prosen, Tomaz"],["dc.date.accessioned","2018-11-07T08:53:17Z"],["dc.date.available","2018-11-07T08:53:17Z"],["dc.date.issued","2011"],["dc.description.abstract","We show that a harmonic lattice model with amplifying and attenuating elements, when coupled to two thermal baths, exhibits unique heat transport properties. Some of these novel features include anomalous nonequilibrium steady-state heat currents, negative differential thermal conductance, as well as nonreciprocal heat transport. We find that when these elements are arranged in a PT-symmetric manner, the domain of existence of the nonequilibrium steady state is maximized. We propose an electronic experimental setup based on resistive-inductive-capacitive (RLC) transmission lines, where our predictions can be tested."],["dc.identifier.doi","10.1103/PhysRevE.84.021119"],["dc.identifier.isi","000293778100002"],["dc.identifier.pmid","21928961"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/22374"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Amer Physical Soc"],["dc.relation.issn","1539-3755"],["dc.title","Heat transport in active harmonic chains"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Physical Review Letters"],["dc.bibliographiccitation.volume","103"],["dc.contributor.author","Bendix, Oliver"],["dc.contributor.author","Fleischmann, Ragnar"],["dc.contributor.author","Kottos, Tsampikos"],["dc.contributor.author","Shapiro, Boris"],["dc.date.accessioned","2021-06-01T10:47:06Z"],["dc.date.available","2021-06-01T10:47:06Z"],["dc.date.issued","2009"],["dc.identifier.doi","10.1103/PhysRevLett.103.030402"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/85480"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-425"],["dc.relation.eissn","1079-7114"],["dc.relation.issn","0031-9007"],["dc.title","Exponentially Fragile P T Symmetry in Lattices with Localized Eigenmodes"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]