Graduation Semester and Year
Spring 2025
Language
English
Document Type
Dissertation
Degree Name
Doctor of Philosophy in Physics and Applied Physics
Department
Physics
First Advisor
Teviet Creighton
Second Advisor
Zdzislaw Musielak
Third Advisor
Volker Quetschke
Fourth Advisor
Manfred Cuntz
Fifth Advisor
Sangwook Park
Abstract
Currently, the most sensitive gravitational wave detectors use laser interferometry to measure the position change between separated test masses. Besides astrophysical gravitational waves, the motion of the test masses can also be influenced by seismic noise, thermal fluctuations, quantum mechanical effects, and other noise sources. As the next-generation detectors extend to lower and lower frequencies as well as weaker and weaker signals, certain types of noise will become important in setting the noise floor. In this research, we are working with a particular type of noise caused by the gravitational field of air masses moving around the detectors. Starting with an analytic estimate, we conduct a simulation to test the assumptions of the analytic model and compute the expected power spectral density. Our goal is to estimate the ultimate low-frequency sensitivity of the new generation of gravitational wave detectors.
Keywords
Gravitational-wave, Newtonian noise, Atmospheric newtonian noise
License
This work is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 4.0 International License.
Recommended Citation
Wang, Wenhui, "IMPROVING MODELS OF THERMAL ATMOSPHERIC NEWTONIAN NOISE FOR ADVANCED AND 3RD GENERATION GRAVITATIONAL-WAVE DETECTORS" (2025). Physics Dissertations. 180.
https://mavmatrix.uta.edu/physics_dissertations/180