publication . Article . 2018

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

Yu-Xiang Zhang; Yuan Zhang; Klaus Mølmer;
Open Access English
  • Published: 19 Sep 2018 Journal: Physical Review A, volume 98, issue 3 (issn: 2469-9926, eissn: 2469-9934, Copyright policy)
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 linewidth 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.
Persistent Identifiers
Subjects
arXiv: Physics::Optics
free text keywords: rare earth, quantum technologies, nanoqtech, plasmon, graphene, Dissipative system, Condensed matter physics, Phase transition, Physics, Common emitter, Plasmon, Surface plasmon, Laser linewidth, Normal phase, Graphene, law.invention, law
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
Communities
FET H2020FET OPEN: FET-Open research projects
FET H2020FET OPEN: Nanoscale Systems for Optical Quantum Technologies
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