Paired carriers as a way to reduce quantum noise of multicarrier gravitational-wave detectors
| Autor: | N. V. Voronchev, Farid Ya. Khalili, Haixing Miao, M. Korobko |
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| Rok vydání: | 2015 |
| Předmět: |
Physics
Quantum Physics Nuclear and High Energy Physics business.industry Quantum limit Quantum sensor Quantum noise FOS: Physical sciences General Relativity and Quantum Cosmology (gr-qc) Quantum capacity Quantum imaging General Relativity and Quantum Cosmology Quantum amplifier Optics Quantum error correction Quantum mechanics Quantum algorithm Quantum Physics (quant-ph) business |
| Zdroj: | Physical Review D |
| Popis: | We explore new regimes of laser interferometric gravitational-wave detectors with multiple optical carriers which allow us to reduce the quantum noise of these detectors. In particular, we show that using two carriers with the opposite detunings, homodyne angles, and squeezing angles, but identical other parameters (the antisymmetric carriers), one can suppress the quantum noise in such a way that its spectrum follows the Standard Quantum Limit (SQL) at low frequencies. Relaxing this antisymmetry condition, it is also possible to slightly overcome the SQL in broadband. Combining several such pairs in the xylophone configuration, it is possible to shape the quantum noise spectrum flexibly. |
| Databáze: | OpenAIRE |
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