Quantum emitters coupled to surface plasmons of an nanowire: A Green's function approach

David Dzsotjan; Anders Søndberg Sørensen; Michael Fleischhauer

doi:10.1103/physrevb.82.075427

Quantum emitters coupled to surface plasmons of an nanowire: A Green's function approach

David Dzsotjan, Anders Søndberg Sørensen, Michael Fleischhauer

178 Citations (Scopus)

Abstract

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.

Original language	Danish
Journal	Physical Review B. Condensed Matter and Materials Physics
Volume	82
Issue number	7
Pages (from-to)	075427
Number of pages	13
ISSN	2469-9950
DOIs	https://doi.org/10.1103/physrevb.82.075427
Publication status	Published - 27 Aug 2010

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10.1103/physrevb.82.075427

Cite this

@article{3cda4080ba5f11df825b000ea68e967b,

title = "Quantum emitters coupled to surface plasmons of an nanowire: A Green's function approach",

abstract = "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. Udgivelsesdato: 27 August",

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T1 - Quantum emitters coupled to surface plasmons of an nanowire

T2 - A Green's function approach

AU - Dzsotjan, David

AU - Sørensen, Anders Søndberg

AU - Fleischhauer, Michael

PY - 2010/8/27

Y1 - 2010/8/27

N2 - 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. Udgivelsesdato: 27 August

AB - 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. Udgivelsesdato: 27 August

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DO - 10.1103/physrevb.82.075427

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JO - Physical Review B. Condensed Matter and Materials Physics

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