Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A test of the circular Unruh effect using atomic electrons   We propose a test for the circular Unruh effect using certain atoms -
fluorine and oxygen. For these atoms the centripetal acceleration of the outer
shell electrons implies an effective Unruh temperature in the range 1000 - 2000
K. This range of Unruh temperatures is large enough to shift the expected
occupancy of the lowest energy level and nearby energy levels. In effect the
Unruh temperature changes the expected pure ground state, with all the
electrons in the lowest energy level, to a mixed state with some larger than
expected occupancy of states near to the lowest energy level. Examining these
atoms at low background temperatures and finding a larger than expected number
of electrons in low lying excited levels, beyond what is expected due to the
background thermal excitation, would provide experimental evidence for the
Unruh effect.

8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
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The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
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The categories of this paper are: eess
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The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin
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The categories of this paper are: math
34
The categories of this paper are: chem-ph
37
The categories of this paper are: supr-con
22
The categories of this paper are: chao-dyn