Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum Parameter Estimation in the Unruh-DeWitt detector model   Relativistic effects on the precision of quantum metrology for particle
detectors, such as two-level atoms are studied. The quantum Fisher information
is used to estimate the phase sensitivity of atoms in non-inertial motions or
in gravitational fields. The Unruh-DeWitt model is applicable to the
investigation of the dynamics of a uniformly accelerated atom weakly coupled to
a massless scalar vacuum field. When a measuring device is in the same
relativistic motion as the atom, the dynamical behavior of quantum Fisher
information as a function of Rindler proper time are obtained. It is found out
that monotonic decrease in phase sensitivity is characteristic of dynamics of
relativistic quantum estimation. To improve relativistic quantum metrology, we
reasonably take into account two reflecting plane boundaries perpendicular to
each other.

11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
4
The categories of this paper are: cond-mat
18
The categories of this paper are: econ
29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org