Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On Testing the Equivalence Principle with Extragalactic Bursts   An interesting test of Einstein's equivalence principle (EEP) relies on the
observed lag in arrival times of photons emitted from extragalactic transient
sources. Attributing the lag between photons of different energies to the
gravitational potential of the Milky Way (MW), several authors derive new
constraints on deviations from EEP. It is shown here that potential
fluctuations from the large scale structure are at least two orders of
magnitude larger than the gravitational potential of the MW. Combined with the
larger distances, for sources at redshift $z\gtsim 0.5$ the {\it rms} of the
contribution from these fluctuations exceeds the MW by more than 4 orders of
magnitude. We provide actual constraints for several objects based on a
statistical calculation of the large scale fluctuations in the standard
$\Lambda$CDM cosmological model.

8
The categories of this paper are: hep-ex
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con