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Practical measurement of joint weak values and their connection to the annihilation operator

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 نشر من قبل Jeff Lundeen
 تاريخ النشر 2005
  مجال البحث فيزياء
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Weak measurements are a new tool for characterizing post-selected quantum systems during their evolution. Weak measurement was originally formulated in terms of von Neumann interactions which are practically available for only the simplest single-particle observables. In the present work, we extend and greatly simplify a recent, experimentally feasible, reformulation of weak measurement for multiparticle observables [Resch and Steinberg (2004, Phys. Rev. Lett., 92, 130402)]. We also show that the resulting ``joint weak values take on a particularly elegant form when expressed in terms of annihilation operators.

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