Correlated exciton transport in Rydberg-dressed-atom spin chains

• Verfasst von: Schempp, Hanna [VerfasserIn]
• Verfasst von: Günter, Georg [VerfasserIn]
• Verfasst von: Wüster, S. [VerfasserIn]
• Verfasst von: Weidemüller, Matthias [VerfasserIn]
• Verfasst von: Whitlock, Shannon [VerfasserIn]
• Titel: Correlated exciton transport in Rydberg-dressed-atom spin chains
• Verf.angabe: H. Schempp, G. Günter, S. Wüster, M. Weidemüller, and S. Whitlock
• E-Jahr: 2015
• Jahr: 26 August 2015
• Fussnoten: Gesehen am 18.06.2020
• Titel Quelle: Enthalten in: Physical review letters
• Ort Quelle: College Park, Md. : APS, 1958
• Jahr Quelle: 2015
• Band/Heft Quelle: 115(2015,9) Artikel-Nummer 093002, 6 Seiten
• ISSN Quelle: 1079-7114
• DOI: doi:10.1103/PhysRevLett.115.093002
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1701035588

Abstract

We investigate the transport of excitations through a chain of atoms with nonlocal dissipation introduced through coupling to additional short-lived states. The system is described by an effective spin-1/2 model where the ratio of the exchange interaction strength to the reservoir coupling strength determines the type of transport, including coherent exciton motion, incoherent hopping, and a regime in which an emergent length scale leads to a preferred hopping distance far beyond nearest neighbors. For multiple impurities, the dissipation gives rise to strong nearest-neighbor correlations and entanglement. These results highlight the importance of nontrivial dissipation, correlations, and many-body effects in recent experiments on the dipole-mediated transport of Rydberg excitations.