Quantum reality with negative-mass particles

Mordecai Waegell, Eliahu Cohen, Avshalom Elitzur, Jeff Tollaksen, Yakir Aharonov

Research output: Working paper / PreprintPreprint

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Physical interpretations of the time-symmetric formulation of quantum mechanics, due to Aharonov, Bergmann, and Lebowitz are discussed in terms of weak values. The most direct, yet somewhat naive, interpretation uses the time-symmetric formulation to assign eigenvalues to unmeasured observables of a system, which results in logical paradoxes, and no clear physical picture. A top-down ontological model is introduced that treats the weak values of observables as physically real during the time between pre- and post-selection (PPS), which avoids these paradoxes. The generally delocalized rank-1 projectors of a quantum system describe its fundamental ontological elements, and the highest-rank projectors corresponding to individual localized objects describe an emergent particle model, with unusual particles whose masses and energies may be negative or imaginary. This retrocausal top-down model leads to an intuitive particle-based ontological picture, wherein weak measurements directly probe the properties of these exotic particles, which exist whether or not they are actually measured
Original languageUndefined/Unknown
StatePublished - 24 Jan 2022

Bibliographical note

15 pages, 5 figures (Supporting Information: 16 pages, 3 figures)


  • quant-ph

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