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Quantum Metrology: Detection of weak forces using Schrodinger Cat resources

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 نشر من قبل Bill Munro
 تاريخ النشر 2003
  مجال البحث فيزياء
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We 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.



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