Conversion of conventional gravitational-wave interferometers into quantum nondemolition interferometers by modifying their input and/or output optics

  title={Conversion of conventional gravitational-wave interferometers into quantum nondemolition interferometers by modifying their input and/or output optics},
  author={Harry J. Kimble and Yuri Levin and Andrey B. Matsko and Kip S. Thorne and Sergey P. Vyatchanin California Institute of Technology and University of Southern California and Berkeley and Texas AM University and Moscow state University},
  journal={Physical Review D},
The LIGO-II gravitational-wave interferometers (ca. 2006–2008) are designed to have sensitivities near the standard quantum limit (SQL) in the vicinity of 100 Hz. This paper describes and analyzes possible designs for subsequent LIGO-III interferometers that can beat the SQL. These designs are identical to a conventional broad band interferometer (without signal recycling), except for new input and/or output optics. Three designs are analyzed: (i) a squeezed-input interferometer (conceived by… 
Advanced techniques for squeezed-light-enhanced gravitational-wave detection
Quantum noise is one of the limiting factors in laser-interferometric gravitationalwave (GW) detectors. The application of squeezed states in these interferometers allows the reduction of quantum
Quantum noise in differential-type gravitational-wave interferometer and signal recycling
There exists the standard quantum limit (SQL), derived from Heisenberg's uncertainty relation, in the sensitivity of laser interferometer gravitational-wave (GW) detectors. However, in the context of
Demonstration of interferometer enhancement through EPR entanglement
A proof-of-principle set-up of an alternative concept that achieves the broadband noise reduction by using Einstein–Podolsky–Rosen entangled states instead of quantum metrology, providing a viable alternative to high-cost filter cavities.
Increasing the sensitivity of future gravitational-wave detectors with double squeezed-input
We consider improving the sensitivity of future interferometric gravitational-wave detectors by simultaneously injecting two squeezed vacuums (light), filtered through a resonant Fabry-Perot cavity,
Squeezed light for the interferometric detection of high-frequency gravitational waves
The quantum noise of the light field is a fundamental noise source in interferometric gravitational-wave detectors. Injected squeezed light is capable of reducing the quantum noise contribution to
Quantum Noise in a Fabry-Perot Interferometer Including the Influence of Diffraction Loss of Light
The DECi-hertz Interferometer Gravitational wave Observatory (DECIGO) is designed to detect gravitational waves at frequencies between 0.1 and 10 Hz. In this frequency band, one of the most important
Frequency-Dependent Squeezing for Advanced LIGO.
The first detection of gravitational waves by the Laser Interferometer Gravitational-Wave Observatory (LIGO) in 2015 launched the era of gravitational-wave astronomy. The quest for gravitational-wave
Quantum noise reduction using squeezed states in LIGO
Direct detection of gravitational waves will require earth based detectors to measure strains of the order 10−21, at frequencies of 100 Hz, a sensitivity that has been accomplished with the initial
Scaling law in signal recycled laser-interferometer gravitational-wave detectors
By mapping the signal-recycling (SR) optical configuration to a three-mirror cavity, and then to a single detuned cavity, we express the SR optomechanical dynamics, input-output relation, and noise
A Sagnac interferometer as a gravitational-wave third-generation detector
It is planned that the next generation of laser interferometric gravitational-wave detectors will surpass the second-generation detectors in amplitude sensitivity in a broad range of frequencies by


in 300 Years of Gravitation
The invention relates to a novel filtering circuit whereby a phase detected output control signal is filtered and utilized to provide greater stability in a phase-locked loop. The filtering circuit
  • Rev. A 31, 3068
  • 1985
  • Lett. A 175, 273
  • 1993
  • Rev. A 31, 3093
  • 1985
  • Rev. D, 23, 1693
  • 1981
  • Lett. 13, 301
  • 1990
Quantum optics. Experimental gravity, and measurement theory