dc.contributor.author | Bauer, Johannes | |
dc.contributor.author | Babadi, Mehrtash | |
dc.contributor.author | Demler, Eugene | |
dc.date.accessioned | 2019-09-26T15:00:59Z | |
dc.date.issued | 2015 | |
dc.identifier.citation | Bauer, Johannes, Mehrtash Babadi, and Eugene Demler. 2015. “Dynamical Instabilities and Transient Short-Range Order in the Fermionic Hubbard Model.” Physical Review B 92 (2). https://doi.org/10.1103/physrevb.92.024305. | |
dc.identifier.issn | 1098-0121 | |
dc.identifier.issn | 1550-235X | |
dc.identifier.uri | http://nrs.harvard.edu/urn-3:HUL.InstRepos:41412151 | * |
dc.description.abstract | We study the dynamics of magnetic correlations in the half-filled fermionic Hubbard model following a fast ramp of the repulsive interaction. We use Schwinger-Keldysh self-consistent second-order perturbation theory to investigate the evolution of single-particle Green's functions and solve the nonequilibrium Bethe-Salpeter equation to study the dynamics of magnetic correlations. This approach gives us new insights into the interplay between single-particle relaxation dynamics and the growth of antiferromagnetic correlations. Depending on the ramping time and the final value of the interaction, we find different dynamical behavior which we illustrate using a dynamical phase diagram. Of particular interest is the emergence of a transient short-range ordered regime characterized by the strong initial growth of antiferromagnetic correlations followed by a decay of correlations upon thermalization. The discussed phenomena can be probed in experiments with ultracold atoms in optical lattices. | |
dc.language.iso | en_US | |
dc.publisher | American Physical Society | |
dash.license | LAA | |
dc.title | Dynamical instabilities and transient short-range order in the fermionic Hubbard model | |
dc.type | Journal Article | |
dc.description.version | Version of Record | |
dc.relation.journal | Physical Review B - Condensed Matter and Materials Physics | |
dash.depositing.author | Demler, Eugene A.::966ad10e063726c62d649ffd97bccc3b::600 | |
dc.date.available | 2019-09-26T15:00:59Z | |
dash.workflow.comments | 1Science Serial ID 76669 | |
dc.identifier.doi | 10.1103/PhysRevB.92.024305 | |
dash.source.volume | 92;2 | |