@article{22958,
  abstract     = {We propose a sensing scheme for detecting weak forces that achieves sensitivity scaling proportional to the number of individual sensors without relying on entanglement or other non-classical resources. Our scheme utilizes coherent averaging across a chain of 
 optomechanical cavities, unidirectionally coupled via a laser beam. As the beam passes through the cavities, it accumulates phase shifts induced by a common external force acting on the mechanical elements. Remarkably, this fully classical approach achieves the sensitivity scaling typically associated with quantum-enhanced protocols, providing a robust and experimentally feasible route to precision sensing. Potential applications range from high-sensitivity gravitational field measurements at the Large Hadron Collider to probing dark matter interactions and detecting gravitational waves. This work opens a new pathway for leveraging coherent light-matter interactions for force sensing.},
  author       = {Marchese, Marta M and Braun, Daniel and Nimmrichter, Stefan and Rätzel, Dennis},
  issn         = {1367-2630},
  journal      = {New Journal of Physics},
  number       = {8},
  publisher    = {IOP Publishing},
  title        = {{Cascaded optomechanical sensing for small signals}},
  doi          = {10.1088/1367-2630/ae8b16},
  volume       = {28},
  year         = {2026},
}