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

J. S. Lundeen·K. J. Resch
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Abstract

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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J. S. Lundeen, K. J. Resch. 2005-01-13. Practical measurement of joint weak values and their connection to the annihilation operator. https://doi.org/10.1016/j.physleta.2004.11.037

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