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Publication . Article . Preprint . 2018

Dicke phase transition in a disordered emitter–graphene-plasmon system

Yu-Xiang Zhang; Yuan Zhang; Klaus Mølmer;
Open Access
Published: 19 Sep 2018 Journal: Physical Review A, volume 98 (issn: 2469-9926, eissn: 2469-9934, Copyright policy )
Publisher: American Physical Society (APS)
Abstract

We study the Dicke phase transition in a disordered system of emitters coupled to the plasmonic modes of a graphene monolayer. This system has unique properties associated with the tunable, dissipative and broadband characters of the graphene surface plasmons, as well as the disorder due to the random spatial distribution and the inhomogeneous line-width broadening of the emitters. We apply the Keldysh functional-integral approach, and identify a normal phase, a superradiant phase and a spin-glass phase of the system. The conditions for these phases and their experimental signatures are discussed.

12 pages, 4 figures

Subjects by Vocabulary

Microsoft Academic Graph classification: Plasmon Graphene law.invention law Physics Phase transition Phase (matter) Common emitter Dissipative system Condensed matter physics Surface plasmon Laser linewidth

arXiv: Physics::Optics

Subjects

Quantum Physics, Condensed Matter - Disordered Systems and Neural Networks, Quantum Physics (quant-ph), Disordered Systems and Neural Networks (cond-mat.dis-nn), FOS: Physical sciences, rare earth, quantum technologies, nanoqtech, plasmon, graphene

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Funded by
EC| NanOQTech
Project
NanOQTech
Nanoscale Systems for Optical Quantum Technologies
  • Funder: European Commission (EC)
  • Project Code: 712721
  • Funding stream: H2020 | RIA
Validated by funder
,
EC| NanOQTech
Project
NanOQTech
Nanoscale Systems for Optical Quantum Technologies
  • Funder: European Commission (EC)
  • Project Code: 712721
  • Funding stream: H2020 | RIA
Validated by funder
moresidebar