Detection of 15 dB Squeezed States of Light and their Application for the Absolute Calibration of Photoelectric Quantum Efficiency.
By H. Vahlbruch, M. Mehmet, K. Danzmann, Roman Schnabel. Physical Review Letters, 2016
719 citations recorded by the source corpus.
Squeezed states of light belong to the most prominent nonclassical resources. They have compelling applications in metrology, which has been demonstrated by their routine exploitation for improving the sensitivity of a gravitational-wave detector since 2010. Here, we report on the direct measurement of 15 dB squeezed vacuum states of light and their application to calibrate the quantum efficiency of photoelectric detection. The object of calibration is a customized InGaAs positive intrinsic negative (p-i-n) photodiode optimized for high external quantum efficiency. The calibration yields a value of 99.5% with a 0.5% (k=2) uncertainty for a photon flux of the order 10^{17} s^{-1} at a wavelength of 1064 nm. The calibration neither requires any standard nor knowledge of the incident light power and thus represents a valuable application of squeezed states of light in quantum metrology.
Subfields: Instrumentation, Ophthalmology, Statistics and Probability
View Paper: https://www.semanticscholar.org/paper/8e59f588c3f0579154e9a2ee7a195738df1b6ff0
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Citations in the corpus
- GWTC-2: Compact Binary Coalescences Observed by LIGO and Virgo During the First Half of the Third Observing Run (2020, positive): “To reduce the optical losses optimizing the squeezing performance, the photodiodes installed at the interferometer dark port to measure the gravitational-wave signals were replaced by high quantum efficiency ones [62].”
- Macroscopic quantum states: Measures, fragility, and implementations (2017, methodology): “V.E. Note that record squeezing, down to ≈ 15dB, has recently been reported using type I down converters in Vahlbruch et al. (2016).”
- 2022 Roadmap on integrated quantum photonics (2021, background): “To date the largest level of squeezing reported is 15 dB, obtained from a semi-monolithic OPO operating in the continuous-wave regime [254].”
- Neutron Star Extreme Matter Observatory: A kilohertz-band gravitational-wave detector in the global network (2020, background): “5% [41, 42] while at 2 μm the best known efficiency for extended InGaAs to date is 74% [38].”
- Quantum metrology with nonclassical states of atomic ensembles (2016, methodology): “Following the proposal of Caves (1981), squeezed light has been successfully used for optical interferometry beyond the standard quantum limit (Vahlbruch et al., 2005, 2016), with direct application to gravitational wave detectors (Aasi et al., 2013; Schnabel et al., 2010).”
- Quantum-Enhanced Optomechanical Magnetometry (2018, background): “For instance, with detected squeezing of 15 dB recently reported [49], a sensitivity improvement of a factor of 5.”
- Blueprint for a Scalable Photonic Fault-Tolerant Quantum Computer (2020, methodology): “This level of squeezing has been attained in free-space implementations [48], while the current stateof-the-art level of squeezing demonstrated in integrated sources is 8 dB [165]; it remains an open experimental problem to match the level of squeezing in integrated sources to the free-space record.”
- Advances in quantum imaging (2024, neutral): “Noise suppression of as much as 15 dB has been reported 40 .”
- Imaging with quantum states of light (2019, background): “The quantum advantage accessible through squeezing is indeed potentially significant as it is possible to produce states exhibiting squeezing as high as 15dB [104].”
- Modes and states in quantum optics (2019, background): “Because single mode squeezers are now capable of reaching impressive amounts of squeezing, up to 15dB (Vahlbruch et al., 2016), this technique is attractive from an experimental point of view.”