Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Electromagnetic duality and central charge   We provide a full realization of the electromagnetic duality at the boundary
by extending the phase space of Maxwell's theory through the introduction of
edge modes and their conjugate momenta. We show how such extension, which
follows from a boundary action, is necessary in order to have well defined
canonical generators of the boundary magnetic symmetries. In this way, both
electric and magnetic soft modes are encoded in a boundary gauge field and its
conjugate dual. This implementation of the electromagnetic duality has striking
consequences. In particular, we show first how the electric charge quantization
follows straightforwardly from the topological properties of the $U(1)$-bundle
of the boundary dual potential. Moreover, having a well defined canonical
action of the electric and magnetic symmetry generators on the phase space, we
can compute their algebra and reveal the presence of a central charge between
them. We conclude with possible implications of these results in the quantum
theory.

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The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys
22
The categories of this paper are: chao-dyn
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The categories of this paper are: eess
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con