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arXiv:2401.10408 (quant-ph)
[Submitted on 18 Jan 2024]

Title:Separating a particle's mass from its momentum

Authors:Mordecai Waegell, Jeff Tollaksen, Yakir Aharonov
Download a PDF of the paper titled Separating a particle's mass from
its momentum, by Mordecai Waegell and 2 other authors
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    Abstract:The Quantum Cheshire Cat experiment showed that when
    weak measurements are performed on pre- and post-selected system,
    the counterintuitive result has been obtained that a neutron is
    measured to be in one place without its spin, and its spin is
    measured to be in another place without the neutron. A
    generalization of this effect is presented with a massive
    particle whose mass is measured to be in one place with no
    momentum, while the momentum is measured to be in another place
    without the mass. The new result applies to any massive particle,
    independent of its spin or charge. A gedanken experiment which
    illustrates this effect is presented using a nested pair of
    Mach-Zehnder interferometers, but with some of the mirrors and
    beam splitters moving relative to the laboratory frame. The
    analysis of this experiment using the counterparticle ontology of
    Aharonov et al. is also given.

Comments: 8 pages, 4 figures
Subjects: Quantum Physics (quant-ph)
Cite as:  arXiv:2401.10408 [quant-ph]
          (or arXiv:2401.10408v1 [quant-ph] for this version)
          https://doi.org/10.48550/arXiv.2401.10408
          Focus to learn more
          arXiv-issued DOI via DataCite

Submission history

From: Mordecai Waegell [view email]
[v1] Thu, 18 Jan 2024 22:35:01 UTC (43 KB)
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