Suspension-thermal noise in spring–antispring systems for future gravitational-wave detectors
نویسندگان
چکیده
منابع مشابه
Thermal noise from optical coatings in gravitational wave detectors.
Gravitational waves are a prediction of Einstein's general theory of relativity. These waves are created by massive objects, like neutron stars or black holes, oscillating at speeds appreciable to the speed of light. The detectable effect on the Earth of these waves is extremely small, however, creating strains of the order of 10(-21). There are a number of basic physics experiments around the ...
متن کاملQND measurements for future gravitational-wave detectors
Second-generation interferometric gravitational-wave detectors will be operating at the Standard Quantum Limit, a sensitivity limitation set by the trade off between measurement accuracy and quantum back action, which is governed by the Heisenberg Uncertainty Principle. We review several schemes that allows the quantum noise of interferometers to surpass the Standard Quantum Limit significantly...
متن کاملOptimization of thermal noise in multi-loop pendulum suspensions for use in interferometric gravitational-wave detectors
We study the thermal-noise spectrum of multi-loop pendulum suspensions for test masses in interferometric gravitational-wave detectors. The dependence of the thermal noise on suspension parameters and on properties of the wire material is discussed for the situation in which the losses are dominated by the internal friction in the pendulum wires. PACS: 04.80.Nn; 05.40.Ca; 62.40.+i
متن کاملBrownian Thermal Noise in Interferometric Gravitational Wave Detectors and Single Photon Optomechanics
The Laser Interferometric Gravitational-Wave Observatory (LIGO) is designed to detect the Gravitational Waves (GW) predicted by Albert Einstein’s general theory of relativity. The advanced LIGO project is ongoing an upgrade to increase the detection sensitivity by more than a factor of 10, which will make the events detection a routine occurrence. In addition to using higher power lasers, heavi...
متن کاملHuman gravity-gradient noise in interferometric gravitational-wave detectors
Among all forms of routine human activity, the one which produces the strongest gravity-gradient noise in interferometric gravitational-wave detectors ~e.g. LIGO! is the beginning and end of weight transfer from one foot to the other during walking. The beginning and end of weight transfer entail sharp changes ~time scale t;20 msec! in the horizontal jerk ~first time derivative of acceleration!...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Classical and Quantum Gravity
سال: 2017
ISSN: 0264-9381,1361-6382
DOI: 10.1088/1361-6382/aa9e28