Physics – Quantum Physics
Scientific paper
2010-07-04
Phys. Rev. Lett. 104, 251102 (2010)
Physics
Quantum Physics
4 pages, 4 figures
Scientific paper
10.1103/PhysRevLett.104.251102
Only a few years ago, it was realized that the zero-area Sagnac interferometer topology is able to perform quantum nondemolition measurements of position changes of a mechanical oscillator. Here, we experimentally show that such an interferometer can also be efficiently enhanced by squeezed light. We achieved a nonclassical sensitivity improvement of up to 8.2 dB, limited by optical loss inside our interferometer. Measurements performed directly on our squeezed-light laser output revealed squeezing of 12.7 dB. We show that the sensitivity of a squeezed-light enhanced Sagnac interferometer can surpass the standard quantum limit for a broad spectrum of signal frequencies without the need for filter cavities as required for Michelson interferometers. The Sagnac topology is therefore a powerful option for future gravitational-wave detectors, such as the Einstein Telescope, whose design is currently being studied.
Bauchrowitz Jöran
Eberle Tobias
Händchen Vitus
Mehmet Moritz
Müller-Ebhardt Helge
No associations
LandOfFree
Quantum Enhancement of the Zero-Area Sagnac Interferometer Topology for Gravitational Wave Detection does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Quantum Enhancement of the Zero-Area Sagnac Interferometer Topology for Gravitational Wave Detection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum Enhancement of the Zero-Area Sagnac Interferometer Topology for Gravitational Wave Detection will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-443120