Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Revisiting time delay interferometry for unequal-arm LISA and TAIJI   Three spacecraft of LISA/TAIJI mission follow their respective geodesic
trajectories, and the arm lengths formed by the pairs of spacecraft are unequal
due to solar system dynamics. Time delay interferometry is proposed to suppress
the laser frequency noise raised by the unequal-arm-ness. By employing a set of
numerical mission orbit achieved from an ephemeris framework, we investigate
the averaged sensitivity of the first-generation time-delay interferometry
configurations and their corresponding optimal A, E, and T channels. We find
that the sensitivity of the T channel from Michelson and Monitor are differing
from the equal-arm case, and their performance are sensitive to the inequality
of the arm lengths. We also evaluate the laser frequency noise due to the
mismatch of laser beam paths, and derive formula for the path difference in the
unequal arm scenario for the first-generation TDI configurations.

17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
2
The categories of this paper are: math
12
The categories of this paper are: nucl-th
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat