Quantum Backaction on Kg-Scale Mirrors: Observation of Radiation Pressure Noise in the Advanced Virgo Detector

The quantum radiation pressure and the quantum shot noise in laser-interferometric gravitational wave detectors constitute a macroscopic manifestation of the Heisenberg inequality. If quantum shot noise can be easily observed, the observation of quantum radiation pressure noise has been elusive, so...

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Published in:	Physical review letters Vol. 125; no. 13; p. 1
Main Authors:	Acernese, F., Agathos, M., Aiello, L., Ain, A., Allocca, A., Amato, A., Ansoldi, S., Antier, S., Arène, M., Arnaud, N., Ascenzi, S., Astone, P., Aubin, F., Babak, S., Badaracco, F., Bader, M. K. M., Bagnasco, S., Baird, J., Ballardin, G., Baltus, G., Barbieri, C., Barneo, P., Barone, F., Barsuglia, M., Barta, D., Basti, A., Bawaj, M., Bazzan, M., Bejger, M., Belahcene, I., Bernuzzi, S., Bersanetti, D., Bertolini, A., Bischi, M., Bitossi, M., Bizouard, M.-A., Blanch, O., Bobba, F., Boer, M., Bogaert, G., Boldrini, M., Bondu, F., Bonnand, R., Boom, B. A., Boschi, V., Boudart, V., Bouffanais, Y., Bozzi, A., Bradaschia, C., Branchesi, M., Breschi, M., Briant, T., Brighenti, F., Brillet, A., Brooks, J., Bruno, G., Bulik, T., Bulten, H. J., Buskulic, D., Cagnoli, G., Calloni, E., Canepa, M., Carapella, G., Carbognani, F., Carpinelli, M., Carullo, G., Diaz, J. Casanueva, Casentini, C., Caudill, S., Cavalier, F., Cavalieri, R., Cella, G., Cerdá-Durán, P., Cesarini, E., Chaibi, W., Chanial, P., Chassande-Mottin, E., Chiadini, F., Chierici, R., Chincarini, A., Chiummo, A., Christensen, N., Chua, S., Ciani, G., Ciecielag, P., Cieślar, M., Cifaldi, M., Ciolfi, R., Cipriano, F., Cirone, A., Clesse, S., Cleva, F., Coccia, E., Cohadon, P.-F., Cohen, D. E., Colpi, M., Conti, L., Cordero-Carrión, I., Corezzi, S., Corre, D.
Format:	Journal Article
Language:	English
Published:	College Park American Physical Society 25.09.2020
Subjects:	Chemical Sciences Engineering Sciences Gravitation Gravitational waves interferometers Noise Physical, chemical, mathematical & earth Sciences Physics Physique Physique, chimie, mathématiques & sciences de la terre quantum optics Radiation pressure Sensors Shot noise noise Gravitational wave detectors Quantum fluctuations Gravitational waves
ISSN:	0031-9007, 1079-7114, 1079-7114
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Summary:	The quantum radiation pressure and the quantum shot noise in laser-interferometric gravitational wave detectors constitute a macroscopic manifestation of the Heisenberg inequality. If quantum shot noise can be easily observed, the observation of quantum radiation pressure noise has been elusive, so far, due to the technical noise competing with quantum effects. Here, we discuss the evidence of quantum radiation pressure noise in the Advanced Virgo gravitational wave detector. In our experiment, we inject squeezed vacuum states of light into the interferometer in order to manipulate the quantum backaction on the 42 kg mirrors and observe the corresponding quantum noise driven displacement at frequencies between 30 and 70 Hz. The experimental data, obtained in various interferometer configurations, is tested against the Advanced Virgo detector quantum noise model which confirmed the measured magnitude of quantum radiation pressure noise.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 content type line 23 scopus-id:2-s2.0-85092802918
ISSN:	0031-9007 1079-7114 1079-7114
DOI:	10.1103/PhysRevLett.125.131101