Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Giant Amplification in Degenerate Band Edge Slow-Wave Structures
  Interacting with an Electron Beam   We propose a new amplification regime based on synchronous operation of four
degenerate electromagnetic (EM) modes in a slow-wave structure and the electron
beam, referred to as super synchronization. These four EM modes arise in a
Fabry-Perot cavity (FPC) when degenerate band edge (DBE) condition is
satisfied. The modes interact constructively with the electron beam resulting
in superior amplification. In particular, much larger gains are achieved for
smaller beam currents compared to conventional structures based on
synchronization with only a single EM mode. We demonstrate giant gain scaling
with respect to the length of the slow-wave structure compared to conventional
Pierce type single mode traveling wave tube amplifiers. We construct a coupled
transmission line (CTL) model for a loaded waveguide slow-wave structure
exhibiting a DBE, and investigate the phenomenon of giant gain via super
synchronization using the Pierce model generalized to multimode interaction.

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The categories of this paper are: astro-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: bayes-an
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The categories of this paper are: stat
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The categories of this paper are: supr-con
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The categories of this paper are: hep-th
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The categories of this paper are: q-fin
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The categories of this paper are: cmp-lg
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The categories of this paper are: nucl-th
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The categories of this paper are: atom-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: econ
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The categories of this paper are: nlin
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The categories of this paper are: patt-sol
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The categories of this paper are: quant-ph
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The categories of this paper are: dg-ga