Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Magnetic Reconnection and Energy Extraction from a Spinning Black Hole
  with Broken Lorentz Symmetry   In the Penrose process and the Blandford-Znajek mechanism, the rotational
energy of a black hole (BH) is extracted via particle fission and magnetic
tension, respectively. Recently, inspired by a fundamental trait in plasma
astrophysics known as magnetic reconnection (MR), a new energy extraction
mechanism based on the fast reconnection of the magnetic field lines inside the
ergosphere has been proposed by Comisso and Asenjo. In this paper, we
investigate energy extraction caused by MR in the ergosphere of a rapidly
spinning BH with broken Lorentz symmetry by a background bumblebee vector
field. The desired rotating BH solution differentiates from the standard Kerr
BH via the Lorentz symmetry breaking (LSB) parameter $l$, which comes from
nonminimal coupling between the bumblebee field with nonzero vacuum expectation
value and gravity. We find that incorporating $l<0$ in the background is in the
interest of the energy extraction via MR for the fast-spinning BH surrounded by
the plasma with weak magnetization, below what is expected from the scenario by
Comisso and Asenjo. Our analysis robustly indicates that the power of energy
extraction and efficiency of the plasma energization process through fast MR is
more efficient than the Comisso-Asenjo solution, provided that the LSB
parameter is negative, $l<0$. Compared to the Blandford-Znajek mechanism
arising from the underlying background, we also show that MR is a more
efficient energy extraction mechanism if $l<0$.

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The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys