| dc.contributor.author | Dimitrova, Ivana Ljubomirova | |
| dc.contributor.author | Jepsen, Niklas | |
| dc.contributor.author | Buyskikh, Anton | |
| dc.contributor.author | Venegas-Gomez, Araceli | |
| dc.contributor.author | Amato-Grill, Jesse | |
| dc.contributor.author | Daley, Andrew | |
| dc.contributor.author | Ketterle, Wolfgang | |
| dc.date.accessioned | 2020-05-27T19:01:18Z | |
| dc.date.available | 2020-05-27T19:01:18Z | |
| dc.date.issued | 2020-01 | |
| dc.date.submitted | 2019-08 | |
| dc.identifier.issn | 0031-9007 | |
| dc.identifier.issn | 1079-7114 | |
| dc.identifier.uri | https://hdl.handle.net/1721.1/125516 | |
| dc.description.abstract | In an optical lattice, entropy and mass transport by first-order tunneling are much faster than spin transport via superexchange. Here we show that adding a constant force (tilt) suppresses first-order tunneling, but not spin transport, realizing new features for spin Hamiltonians. Suppression of the superfluid transition can stabilize larger systems with faster spin dynamics. For the first time in a many-body spin system, we vary superexchange rates by over a factor of 100 and tune spin-spin interactions via the tilt. In a tilted lattice, defects are immobile and pure spin dynamics can be studied. | en_US |
| dc.description.sponsorship | NSF through the Center for Ultracold Atoms and Grant No. 1506369 | en_US |
| dc.description.sponsorship | ARO-MURI Non-Equilibrium Many-Body Dynamics (Grant No. W911NF-14-1-0003) | en_US |
| dc.description.sponsorship | FOSR-MURI Quantum Phases of Matter (Grant No. FA9550-14-1-0035) | en_US |
| dc.description.sponsorship | ONR (Grant No. N00014-17-1-2253) | en_US |
| dc.description.sponsorship | EPSRC Programme Grant No. DesOEQ(EP/P009565/1) | en_US |
| dc.description.sponsorship | European Office of Aerospace Research and Development via AFOSR Grant No. FA9550-18-1-0064 | en_US |
| dc.publisher | American Physical Society (APS) | en_US |
| dc.relation.isversionof | http://dx.doi.org/10.1103/PhysRevLett.124.043204 | en_US |
| dc.rights | Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. | en_US |
| dc.source | American Physical Society | en_US |
| dc.title | Enhanced Superexchange in a Tilted Mott Insulator | en_US |
| dc.type | Article | en_US |
| dc.identifier.citation | Dimitrova, Ivana, et al. "Enhanced Superexchange in a Tilted Mott Insulator." Physical Review Letters, 124, 4 (January 2020): 043204. © 2020 American Physical Society | en_US |
| dc.contributor.department | Massachusetts Institute of Technology. Department of Physics | en_US |
| dc.contributor.department | Massachusetts Institute of Technology. Research Laboratory of Electronics | en_US |
| dc.relation.journal | Physical Review Letters | en_US |
| dc.eprint.version | Final published version | en_US |
| dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
| eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
| dc.date.updated | 2020-01-31T15:29:50Z | |
| dc.language.rfc3066 | en | |
| dc.rights.holder | American Physical Society | |
| dspace.date.submission | 2020-01-31T15:29:50Z | |
| mit.journal.volume | 124 | en_US |
| mit.journal.issue | 4 | en_US |
| mit.license | PUBLISHER_POLICY | |
| mit.metadata.status | Complete | |
