Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Harder They Fall, the Bigger They Become: Tidal Trapping of Strings
  by Microstate Geometries   We consider the fate of a massless (or ultra-relativistic massive) string
probe propagating down the BTZ-like throat of a microstate geometry in the
D1-D5 system. Far down the throat, the probe encounters large tidal forces that
stretch and excite the string. The excitations are limited by the very short
transit time through the region of large tidal force, leading to a controlled
approximation to tidal stretching. We show that the amount of stretching is
proportional to the incident energy, and that it robs the probe of the kinetic
energy it would need to travel back up the throat. As a consequence, the probe
is effectively trapped far down the throat and, through repeated return passes,
scrambles into the ensemble of nearby microstates. We propose that this tidal
trapping may lead to weak gravitational echoes.

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The categories of this paper are: acc-phys
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The categories of this paper are: hep-ex
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The categories of this paper are: gr-qc
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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: econ
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The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
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The categories of this paper are: funct-an
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The categories of this paper are: quant-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: comp-gas
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The categories of this paper are: nucl-ex
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The categories of this paper are: nlin
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The categories of this paper are: cs
35
The categories of this paper are: mtrl-th