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arXiv · hep-th/0307259

Bosonic field equations from an exact uncertainty principle

Michael J. W. Hall·Kailash Kumar·Marcel Reginatto
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Abstract

A Hamiltonian formalism is used to describe ensembles of fields in terms of two canonically conjugate functionals (one being the field probability density). The postulate that a classical ensemble is subject to nonclassical fluctuations of the field momentum density, of a strength determined solely by the field uncertainty, is shown to lead to a unique modification of the ensemble Hamiltonian. The modified equations of motion are equivalent to the quantum equations for a bosonic field, and thus this exact uncertainty principle provides a new approach to deriving and interpreting the properties of quantum ensembles. The examples of electromagnetic and gravitational fields are discussed. In the latter case the exact uncertainty approach specifies a unique operator ordering for the Wheeler-DeWitt and Ashtekar-Wheeler-DeWitt equations.

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Michael J. W. Hall, Kailash Kumar, Marcel Reginatto. 2003-07-26. Bosonic field equations from an exact uncertainty principle. https://doi.org/10.1088/0305-4470%2F36%2F37%2F313

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