2015/04/08 by H. Schempp, G. Günter, S. Wüster +4 · 1 citation
Physics and Astronomy · #Atom (system on chip) #Atomic physics #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Coupling (piping) #Coupling strength #Dipole #Dissipation #Exciton #Materials science #Physics #Quantum and electron transport phenomena #Quantum mechanics #Rydberg formula #Spectroscopy and Quantum Chemical Studies #Spin (aerodynamics) #cond-mat.quant-gas #physics.atom-ph #quant-ph
paper · pdf · doi:10.1103/physrevlett.115.093002
published as Phys. Rev. Lett. 115, 093002 (2015) · 5 pages
arxiv created 2015/04/08 · openalex publication_date 2015/08/26 · arxiv updated 2015/09/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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.