Fundamental sensitivity limit of lossy cavity-enhanced interferometers with external and internal squeezing
arXiv:2307.09130 · doi:10.1103/PhysRevA.108.063705
Abstract
Quantum optical sensors are ubiquitous in various fields of research, from biological or medical sensors to large-scale experiments searching for dark matter or gravitational waves. Gravitational-wave detectors have been very successful in implementing cavities and quantum squeezed light for enhancing sensitivity to signals from black hole or neutron star mergers. However, the sensitivity to weak forces is limited by available energy and optical decoherence in the system. Here, we derive the fundamental sensitivity limit of cavity and squeezed-light enhanced interferometers with optical loss.This limit is attained by the optimal use of an additional internal squeeze operation, which allows to mitigate readout loss. We demonstrate the application of internal squeezing to various scenarios and confirm that it indeed allows to reach the best sensitivity in cavity and squeezed-light enhanced linear force sensors. Our work establishes the groundwork for the future development of optimal sensors in real-world scenarios where, up until now, the application of squeezed light was curtailed by various sources of decoherence.
References in corpus (32)
- Observation of Gravitational Waves from a Binary Black Hole Merger
- A gravitational wave observatory operating beyond the quantum shot-noise limit: Squeezed light in application
- Generalized uncertainty relations: Theory, examples, and Lorentz invariance
- A microchip optomechanical accelerometer
- Conversion of conventional gravitational-wave interferometers into QND interferometers by modifying their input and/or output optics
- Biological measurement beyond the quantum limit
- Quantum limits in optical interferometry
- Squeezed states of light and their applications in laser interferometers
- Optimal Quantum Phase Estimation
- A quantum-enhanced search for dark matter axions
- First Long-Term Application of Squeezed States of Light in a Gravitational-Wave Observatory
- Fundamental Quantum Limit to Waveform Estimation
- Quantum correlations between the light and kilogram-mass mirrors of LIGO
- Quantum Measurement Theory in Gravitational-Wave Detectors
- Detection loss tolerant supersensitive phase measurement with an SU(1,1) interferometer
- Time-Reversal-Based Quantum Metrology with Many-Body Entangled States
- Optomechanical position detection enhanced by de-amplification using intracavity squeezing
- Fundamental quantum interferometry bound for the squeezed-light-enhanced gravitational-wave detector GEO600
- Scaling law in signal recycled laser-interferometer gravitational-wave detectors
- Mechanical Quantum Sensing in the Search for Dark Matter
- First demonstration of 6 dB quantum noise reduction in a kilometer scale gravitational wave observatory
- Decoherence and degradation of squeezed states in quantum filter cavities
- Truncated nonlinear interferometry for quantum enhanced atomic force microscopy
- Overcoming detection loss and noise in squeezing-based optical sensing
- Beating the standard sensitivity-bandwidth limit of cavity-enhanced interferometers with internal squeezed-light generation
- LIGOs Quantum Response to Squeezed States
- Towards the Fundamental Quantum Limit of Linear Measurements of Classical Signals
- Quantum expander for gravitational-wave observatories
- Overcoming inefficient detection in sub-shot-noise absorption measurement and imaging
- Engineering the Optical Spring via Intra-Cavity Optical-Parametric Amplification
- Quantum limit for laser interferometric gravitational wave detectors from optical dissipation
- Mitigating quantum decoherence in force sensors by internal squeezing