Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Adiabatic following of terahertz surface plasmon-polaritons coupler via
  two waveguides structure   Most recently, two remarkable papers [New J. Phys. 21, 113004 (2019); IEEE J.
Sel. Top. Quantum Electron 27, 1 (2020)] propose broadband complete transfer
terahertz (THz) surface plasmon polaritons (SPPs) waveguide coupler by applying
coherent quantum control -- Stimulated Raman adiabatic passage (STIRAP).
However, previous researches request three SPPs waveguides coupler. In this
paper, we propose a new design of a broadband complete transfer THz SPPs
coupler with an innovative structure of two waveguides by employing two state
adiabatic following. In order to realize this design, we introduce the detuning
parameter into the coupling equation of SPPs waveguides for the first time. We
believe that this finding will improve the THz communication domain.

35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
23
The categories of this paper are: solv-int
29
The categories of this paper are: funct-an
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The categories of this paper are: alg-geom
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
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The categories of this paper are: eess
8
The categories of this paper are: hep-ex
17
The categories of this paper are: q-fin