2010/02/17 by David Dzsotjan, D. Dzsotjan, Anders S. Sørensen +3 · 1 citation
Engineering · Physics and Astronomy · #Atom (system on chip) #Boson #Condensed matter physics #Coupling (piping) #Localized surface plasmon #Materials science #Molecular Junctions and Nanostructures #Molecular physics #Physics #Plasmon #Quantum #Quantum and electron transport phenomena #Quantum mechanics #Spontaneous emission #Superradiance #Surface and Thin Film Phenomena #Surface plasmon #Surface plasmon polariton #quant-ph
paper · pdf · doi:10.1103/physrevb.82.075427
12 pages, 16 figures
arxiv created 2010/02/17 · openalex publication_date 2010/08/27 · arxiv updated 2013/05/29 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We investigate a system consisting of a single, as well as two emitters strongly coupled to surface plasmon modes of a nanowire using a Green's function approach. Explicit expressions are derived for the spontaneous decay rate into the plasmon modes and for the atom-plasmon coupling as well as a plasmon-mediated atom-atom coupling. Phenomena due to the presence of losses in the metal are discussed. In case of two atoms, we observe Dicke subradiance and superradiance resulting from their plasmon-mediated interaction. Based on this phenomenon, we propose a scheme for a deterministic two-qubit quantum gate. We also discuss a possible realization of interesting many-body Hamiltonians, such as the spin-boson model, using strong emitter-plasmon coupling.