LIGO Document P1000001-v3

Second Generation Gravitational Wave Detectors

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Second generation gravitational wave detectors are in process of being researched, designed, and constructed. The include Advanced LIGO in the United States, Advanced Virgo in Italy, the Large Cryogenic Gravitational-wave Telescope in Japan, GEO High Frequency in Germany, and the Australian International Gravitational Observatory in Australia. It is expected that these second generation detectors will have the sensitivity needed to regularly detect gravitational waves and usher in the era of gravitational astronomy. To achieve this sensitivity, new technology to reduce seismic, thermal, quantum and other noise sources is being developed and implemented. Advanced LIGO, Advanced Virgo, and GEO HF have already been funded and are building and buying new hardware, while LCGT is awaiting a funding decision, and AIGO is preparing to submit a funding proposal.
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