Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Paschen-Back effect and Rydberg-state diamagnetism in vapor-cell
  electromagnetically induced transparency   We report on rubidium vapor-cell Rydberg electromagnetically induced
transparency (EIT) in a 0.7~T magnetic field where all involved levels are in
the hyperfine Paschen-Back regime, and the Rydberg state exhibits a strong
diamagnetic interaction with the magnetic field. Signals from both
$^{85}\mathrm{Rb}$ and $^{87}\mathrm{Rb}$ are present in the EIT spectra. This
feature of isotope-mixed Rb cells allows us to measure the field strength to
within a $\pm 0.12$\% relative uncertainty. The measured spectra are in
excellent agreement with the results of a Monte Carlo calculation and indicate
unexpectedly large Rydberg-level dephasing rates. Line shifts and broadenings
due to small inhomogeneities of the magnetic field are included in the model.

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The categories of this paper are: hep-th
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The categories of this paper are: chao-dyn
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The categories of this paper are: funct-an
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The categories of this paper are: atom-ph
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The categories of this paper are: hep-ex
16
The categories of this paper are: stat
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The categories of this paper are: hep-ph
30
The categories of this paper are: q-alg
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The categories of this paper are: quant-ph
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The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-lat
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The categories of this paper are: gr-qc
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The categories of this paper are: adap-org