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EnglishGround based gravitational wave detectors show extremely high displacement sensitivity which approaches the level set by the quantum limit. However a detection will likely be achieved at a low signal-to-noise ratio, making it mandatory to know the noise budget and statistics. The RareNoise project has pointed out a few mechanisms that cause the instruments to operate at non-equilibrium states. We argue that this aspect has not been given appropriate consideration and that it could alter the overall predicted performance of the detector. The large fluctuations of a non-equilibrium object often differ statistically from those studied at thermodynamic equilibrium. We present experimental and theoretical activity devised to further investigate this question.
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| Titolo: | GRAVITATIONAL WAVE DETECTORS ARE DRIVEN AWAY FROM THERMODYNAMIC EQUILIBRIUM, WHY SHOULD WE CARE | |
| Autori: | ||
| Data di pubblicazione: | 2011 | |
| Abstract: | Ground based gravitational wave detectors show extremely high displacement sensitivity which approaches the level set by the quantum limit. However a detection will likely be achieved at a low signal-to-noise ratio, making it mandatory to know the noise budget and statistics. The RareNoise project has pointed out a few mechanisms that cause the instruments to operate at non-equilibrium states. We argue that this aspect has not been given appropriate consideration and that it could alter the overall predicted performance of the detector. The large fluctuations of a non-equilibrium object often differ statistically from those studied at thermodynamic equilibrium. We present experimental and theoretical activity devised to further investigate this question. | |
| Handle: | http://hdl.handle.net/11582/140801 | |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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