University of Maryland, College Park/National Institute of Standards and Technology, Gaithersburg, MD (United States); University of Maryland, College Park, MD (United States)
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
University of Maryland, College Park/National Institute of Standards and Technology, Gaithersburg, MD (United States); University of Maryland, College Park, MD (United States); Riverlane Research, Inc., Cambridge, MA (United States)
Optomechanical sensors are capable of transducing external perturbations to resolvable optical signals. A particular regime of interest is that of high-bandwidth force detection, where an impulse is delivered to the system over a short period of time. Exceedingly sensitive impulse detection has been proposed to observe very weak signals like those due to long-range interactions with dark matter that require much higher sensitivities than current sensors can provide. Quantum resources to go beyond the traditional standard quantum limit of these sensors include squeezing of the light used to transduce the signal, backaction evasion by measuring the optimal quadrature, and quantum nondemolition (QND) measurements that reduce backaction directly. These methods have been developed in the context of gravitational wave detection for target frequencies in the audio band range. Here, we provide the theoretical limits to quantum noise reduction for higher and broader frequency targets, such as those from dark matter signals, while combining quantum-enhanced readout techniques based on squeezed light and QND measurements with optomechanical sensors. Here, we demonstrate that backaction evasion through QND techniques dramatically reduces the technical challenges presented when using squeezed light for broadband force detection, paving the way for combining multiple quantum noise reduction techniques for enhanced sensitivity in the context of impulse metrology.
Ghosh, Sohitri, Feldman, Matthew A., Hong, Seongjin, Marvinney, Claire E., Marino, Alberto M., Pooser, Raphael C., & Taylor, Jacob M. (2025). Combining quantum noise reduction resources: A practical approach. Physical Review A, 111(6). https://doi.org/10.1103/PhysRevA.111.062623
Ghosh, Sohitri, Feldman, Matthew A., Hong, Seongjin, et al., "Combining quantum noise reduction resources: A practical approach," Physical Review A 111, no. 6 (2025), https://doi.org/10.1103/PhysRevA.111.062623
@article{osti_2584534,
author = {Ghosh, Sohitri and Feldman, Matthew A. and Hong, Seongjin and Marvinney, Claire E. and Marino, Alberto M. and Pooser, Raphael C. and Taylor, Jacob M.},
title = {Combining quantum noise reduction resources: A practical approach},
annote = {Optomechanical sensors are capable of transducing external perturbations to resolvable optical signals. A particular regime of interest is that of high-bandwidth force detection, where an impulse is delivered to the system over a short period of time. Exceedingly sensitive impulse detection has been proposed to observe very weak signals like those due to long-range interactions with dark matter that require much higher sensitivities than current sensors can provide. Quantum resources to go beyond the traditional standard quantum limit of these sensors include squeezing of the light used to transduce the signal, backaction evasion by measuring the optimal quadrature, and quantum nondemolition (QND) measurements that reduce backaction directly. These methods have been developed in the context of gravitational wave detection for target frequencies in the audio band range. Here, we provide the theoretical limits to quantum noise reduction for higher and broader frequency targets, such as those from dark matter signals, while combining quantum-enhanced readout techniques based on squeezed light and QND measurements with optomechanical sensors. Here, we demonstrate that backaction evasion through QND techniques dramatically reduces the technical challenges presented when using squeezed light for broadband force detection, paving the way for combining multiple quantum noise reduction techniques for enhanced sensitivity in the context of impulse metrology.},
doi = {10.1103/PhysRevA.111.062623},
url = {https://www.osti.gov/biblio/2584534},
journal = {Physical Review A},
issn = {ISSN 2469-9926},
number = {6},
volume = {111},
place = {United States},
publisher = {American Physical Society (APS)},
year = {2025},
month = {06}}
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 517, Issue 1-3https://doi.org/10.1016/j.nima.2003.11.124