Journal of Research on Many-body Systems

Journal of Research on Many-body Systems

Quantum investigation of electromagnetic field energies in the presence of metamaterials

Document Type : Full length research Paper

Author
Department of Physics‎, ‎Faculty of Science‎, ‎Imam Khomeini International University‎, ‎Qazvin‎, ‎Iran, ‎34148‎ - ‎96818
Abstract
We ‎study ‎quantum ‎nature ‎of ‎metamaterials ‎in ‎the ‎presence ‎of ‎electromagnetic ‎field. Starting from a Lagrangian, the ‎electromagnetic ‎field ‎‎is‎ canonically ‎quantized in ‎the ‎presence ‎of ‎the metamaterials‎. The equations of motion for the canonical variables are solved using Laplace technique. In the large-time limit, the vector potential operator is found and expressed in terms of the medium operators. In a global thermal state, finite temperature two-point correlation functions of the electromagnetic field are calculated. The electromagnetic energy flux and energy density and absorbed energy in metamaterials are obtained by considering the special case of thermal equilibrium and using Noether's theorem. ‎
Keywords
Subjects

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Volume 7, Issue 14
Autumn 2017
Pages 59-68

  • Receive Date 27 October 2016
  • Revise Date 06 March 2017
  • Accept Date 29 May 2017