Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A New Class of Optical Beams for Large Baseline Interferometric
  Gravitational Wave Detectors   A folded resonant Fabry-Perot cavity has the potential to significantly
reduce the impact of coating thermal noise on the performance of kilometer
scale gravitational wave detectors. When constructed using only spherical
mirror surfaces it is possible to utilize the extremely robust $TEM_{00}$ mode
optical mode. In this paper we investigate the potential thermal noise
improvements that can be achieved for third generation gravitational wave
detectors using realistic constraints. Comparing the previously proposed beam
configurations such as e.g. higher order Laguerre-Gauss modes, we find that
similar or better thermal noise improvement factors can be achieved, while
avoiding degeneracy issues associated with those beams.

1
The categories of this paper are: cs
13
The categories of this paper are: quant-ph
37
The categories of this paper are: supr-con
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
23
The categories of this paper are: solv-int
29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci