Study and experiment on the alternative technique of - PowerPoint PPT Presentation

Study and experiment on the alternative technique of frequency–dependent squeezing generation with EPR entanglement for next generation of gravitational wave detectors. Mateusz Bawaj on behalf of Virgo squeezing team

Noise sources in Adv Virgo 09/09/2019 TAUP 2019

Improvement with FIS GEO600 : 6 dB LIGO : LLO 3.1 dB, LHO 2.2 dB Advanced Virgo : 3.1 dB (in collaboration with AEI) 09/09/2019 TAUP 2019

Frequency dependent squeezing 09/09/2019 TAUP 2019

Theoretical proposal 09/09/2019 TAUP 2019

Pros and cons ✗ intrinsic 3dB penalty ✗ more complicated detection setup with two homo-dyne detectors ✗ additional output mode cleaner is required ✔ no need for long fjlter cavity infrastructure ✔ variable phase rotation for various SRC confjguration adjustable with idler detuning 09/09/2019 TAUP 2019

EPR Squeezing Experiment 09/09/2019 TAUP 2019

Improvement of Virgo detector 09/09/2019 TAUP 2019

Conceptual design 09/09/2019 TAUP 2019

Summary Work on the conceptual design Interesting theoretical proposal of the apparatus On-going simulations of Experimental demonstration compatibility with Virgo 09/09/2019 TAUP 2019

Acknowledgements: This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 734303 *Bawaj M. 1 , Barsuglia M. 2 , Bazzan M. 3,4 , Calloni E. 5 , Ciani G. 3,4 , Conti L. 4 , D’Angelo B. 6,7 , De Laurentis M. 5 , De Rosa R. 5 ,Di Pace S. 8,9 , Fafone V. 10,11 , Garaventa B. 6,7 , Gemme G. 7 , Gennai A. 12 , Giacoppo L. 10,11 , Harms J. 13,14 , Khan I. 13,11 , Majorana E. 8,9 , Naticchioni L. 8,9 , Nguyen C. 2 , Passuello D. 12 , Prodi G. 15 , Ricci F. 8,9 , Rocchi A. 11 , Sequino V. 7 , Sorrentino F. 7 , Vardaro M. 3,4 , Zendri J.P. 4 *mateusz.bawaj@pg.infn.it 1 – INFN Sezione di Perugia, I-06123 Perugia, Italy 2 – Laboratoire AstroParticule et Cosmologie, Université Paris Diderot, CNRS/IN2P3, CEA/Irfu, Observatoire de Paris, Sorbonne Paris Cité, F-75205 Paris Cedex 13, France 3 – Università di Padova, Dipartimento di Fisica e Astronomia, I-35131 Padova, Italy 4 – INFN Sezione di Padova, I-35131 Padova, Italy 5 – Università di Napoli “Federico II”, Complesso Universitario di Monte S.Angelo, I-80126 Napoli, and INFN Sezione di Napoli, Italy 6 – Università degli Studi di Genova, Dipartimento di Fisica, I-16146 Genova, Italy 7 – INFN Sezione di Genova, I-16146 Genova, Italy 8 – Università di Roma “La Sapienza”, I-00185 Roma,Italy 9 – INFN Sezione di Roma “ La Sapienza”, I-00185 Roma, Italy 10 – Università di Roma “Tor Vergata”, I-00133 Roma, Italy 11 – INFN Sezione di Roma “Tor Vergata”, I-00133 Roma, Italy 12 – INFN Sezione di Pisa, I-16146 Pisa, Italy 13 – Gran Sasso Science Institute, I-67100 L’Aquila, Italy 14 – INFN Laboratori Nazionali del Gran Sasso, I-67100 Assergi, Italy 15 – Università di Trento, Dipartimento di Fisica, I-38123 Povo, Trento, and INFN Sezione di Trento, Italy 09/09/2019 TAUP 2019