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American Journal of Physics -- November 2000 -- Volume 68, Issue 11, pp. 1007

Lorentz transformation of a system carrying “Hidden Momentum”

E. Comay

School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel

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The relations between an energy–momentum tensor and its corresponding energy–momentum four-vector are discussed. A particular emphasis is put on conditions guaranteeing that spatial integrals of the energy–momentum densities pertain to a true four-vector. Cases where such integrals are not components of a true four-vector are analyzed and the usefulness of the notion of a false four-vector is pointed out. Results are used for explaining Lorentz transformation properties of “hidden momentum.” © 2000 American Association of Physics Teachers.

© 2000 American Association of Physics Teachers

EDITORIALLY RELATED

  1. Response to "Lorentz transformation of a system carrying `Hidden Momentum,' " by E. Comay [Am. J. Phys. 68, 1007 (2000)]
    V. Hnizdo
    Am. J. Phys. 68, 1014 (2000)AJPIAS000068000011001014000001

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History
Received Sep 1999
Accepted Mar 2000

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0002-9505 (print)  

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