Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Suppression of Spin-Exchange Relaxation Using Pulsed Parametric
  Resonance   We demonstrate that spin-exchange dephasing of Larmor precession at
near-earth-scale fields is effectively eliminated by dressing the alkali-metal
atom spins in a sequence of AC-coupled 2-pi pulses, repeated at the Larmor
precession frequency. The contribution of spin-exchange collisions to the
spectroscopic line width is reduced by a factor of the duty cycle of the
pulses. We experimentally demonstrate resonant transverse pumping in magnetic
fields as high as 0.1 Gauss, present experimental measurements of the
suppressed spin-exchange relaxation, and show enhanced magnetometer response
relative to a light-narrowed scalar magnetometer.

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The categories of this paper are: q-bio
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The categories of this paper are: acc-phys
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The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
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The categories of this paper are: chao-dyn
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The categories of this paper are: nucl-ex
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The categories of this paper are: comp-gas
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The categories of this paper are: patt-sol
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The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
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The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
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The categories of this paper are: stat
29
The categories of this paper are: funct-an
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The categories of this paper are: dg-ga
2
The categories of this paper are: math