2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/91665We investigate the utility of non classical states of simple harmonic oscillators (a superposition of coherent states) for sensitive force detection. We find that like squeezed states a superposition of coherent states allows the detection of displacement measurements at the Heisenberg limit. Entangling many superpositions of coherent states offers a significant advantage over a single mode superposition states with the same mean photon number.Proceedings of the Sixth International Conference on Quantum Communication, Measurement and Computing, pg 333, ed by J H Shapiro and O Hirota, Rinton Press (2003)Quantum Physicstext